void rampart_bitmap_render(mame_bitmap *bitmap, const rectangle *cliprect)
{
int x, y;
/* update any dirty scanlines */
for (y = 0; y < ydim; y++)
if (pfdirty[y])
{
const UINT16 *src = &rampart_bitmap[256 * y];
UINT8 scanline[512];
UINT8 *dst = scanline;
/* regenerate the line */
for (x = 0; x < xdim / 2; x++)
{
int bits = *src++;
*dst++ = bits >> 8;
*dst++ = bits;
}
pfdirty[y] = 0;
/* draw it */
draw_scanline8(pfbitmap, 0, y, xdim, scanline, Machine->pens, -1);
}
/* copy the cached bitmap */
copybitmap(bitmap, pfbitmap, 0, 0, 0, 0, cliprect, TRANSPARENCY_NONE, 0);
}
void apexc_state::apexc_teletyper_linefeed()
{
UINT8 buf[teletyper_window_width];
int y;
for (y=teletyper_window_offset_y; y<teletyper_window_offset_y+teletyper_window_height-teletyper_scroll_step; y++)
{
extract_scanline8(*m_bitmap, teletyper_window_offset_x, y+teletyper_scroll_step, teletyper_window_width, buf);
draw_scanline8(*m_bitmap, teletyper_window_offset_x, y, teletyper_window_width, buf, m_palette->pens());
}
m_bitmap->fill(0, teletyper_scroll_clear_window);
}
static void pdp1_typewriter_linefeed(void)
{
UINT8 buf[typewriter_window_width];
int y;
for (y=0; y<typewriter_window_height-typewriter_scroll_step; y++)
{
extract_scanline8(typewriter_bitmap, 0, y+typewriter_scroll_step, typewriter_window_width, buf);
draw_scanline8(typewriter_bitmap, 0, y, typewriter_window_width, buf, Machine->pens, -1);
}
fillbitmap(typewriter_bitmap, Machine->pens[pen_typewriter_bg], &typewriter_scroll_clear_window);
}
void tx0_state::tx0_typewriter_linefeed()
{
UINT8 buf[typewriter_window_width];
int y;
for (y=0; y<typewriter_window_height-typewriter_scroll_step; y++)
{
extract_scanline8(m_typewriter_bitmap, 0, y+typewriter_scroll_step, typewriter_window_width, buf);
draw_scanline8(m_typewriter_bitmap, 0, y, typewriter_window_width, buf, m_palette->pens());
}
const rectangle typewriter_scroll_clear_window(0, typewriter_window_width-1, typewriter_window_height-typewriter_scroll_step, typewriter_window_height-1);
m_typewriter_bitmap.fill(pen_typewriter_bg, typewriter_scroll_clear_window);
}
uint32_t balsente_state::screen_update_balsente(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
const pen_t *pens = &m_palette->pen(m_palettebank_vis * 256);
int y, i;
/* draw scanlines from the VRAM directly */
for (y = cliprect.min_y; y <= cliprect.max_y; y++)
draw_scanline8(bitmap, 0, y, 256, &m_expanded_videoram[(y - BALSENTE_VBEND) * 256], pens);
/* draw the sprite images */
for (i = 0; i < 40; i++)
draw_one_sprite(bitmap, cliprect, &m_spriteram[(0xe0 + i * 4) & 0xff]);
return 0;
}
static void tx0_typewriter_linefeed(running_machine &machine)
{
tx0_state *state = machine.driver_data<tx0_state>();
UINT8 buf[typewriter_window_width];
int y;
for (y=0; y<typewriter_window_height-typewriter_scroll_step; y++)
{
extract_scanline8(state->m_typewriter_bitmap, 0, y+typewriter_scroll_step, typewriter_window_width, buf);
draw_scanline8(state->m_typewriter_bitmap, 0, y, typewriter_window_width, buf, machine.pens);
}
const rectangle typewriter_scroll_clear_window(0, typewriter_window_width-1, typewriter_window_height-typewriter_scroll_step, typewriter_window_height-1);
state->m_typewriter_bitmap.fill(pen_typewriter_bg, typewriter_scroll_clear_window);
}
//! update the internal frame buffer and draw the scanline segment if changed
void alto2_cpu_device::update_framebuf_word(uint16_t* framebuf, int x, int y, uint16_t word)
{
if (y >= A2_DISP_TOTAL_HEIGHT)
return;
int xpword = (m_dsp.xpreg ^ 01777) / 16;
// mixing with the cursor
if (x == xpword++)
word ^= (m_dsp.csr << (m_dsp.xpreg % 16)) >> 16;
if (x == xpword)
word ^= (m_dsp.csr << (m_dsp.xpreg % 16)) & 0xffff;
// no change?
if (word == framebuf[x])
return;
framebuf[x] = word;
draw_scanline8(*m_dsp.bitmap, x * 16, y, 16, m_dsp.patterns + 16 * word, nullptr);
}
static void draw_background(mame_bitmap *bitmap)
{
register int offs, x, y;
UINT8 scanline[288];
// copy the background image from RAM (0x190200-0x19FDFF) to bitmap
if (bitmapflip)
{
offs = 0xFDFE/2;
for (y = 0; y < 224; y++)
{
for (x = 0; x < 288; x+=2)
{
UINT16 data = toypop_bg_image[offs];
scanline[x] = data;
scanline[x+1] = data >> 8;
offs--;
}
draw_scanline8(bitmap, 0, y, 288, scanline, &Machine->pens[0x60 + 0x80*palettebank], -1);
}
}
else
{
uint32_t gridlee_state::screen_update_gridlee(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
const pen_t *pens = &m_palette->pen(m_palettebank_vis * 32);
uint8_t *gfx;
int x, y, i;
/* draw scanlines from the VRAM directly */
for (y = cliprect.min_y; y <= cliprect.max_y; y++)
{
/* non-flipped: draw directly from the bitmap */
if (!m_cocktail_flip)
draw_scanline8(bitmap, 0, y, 256, &m_local_videoram[(y - GRIDLEE_VBEND) * 256], pens + 16);
/* flipped: x-flip the scanline into a temp buffer and draw that */
else
{
int srcy = GRIDLEE_VBSTART - 1 - y;
uint8_t temp[256];
int xx;
for (xx = 0; xx < 256; xx++)
temp[xx] = m_local_videoram[srcy * 256 + 255 - xx];
draw_scanline8(bitmap, 0, y, 256, temp, pens + 16);
}
}
/* draw the sprite images */
gfx = memregion("gfx1")->base();
for (i = 0; i < 32; i++)
{
uint8_t *sprite = m_spriteram + i * 4;
uint8_t *src;
int image = sprite[0];
int ypos = sprite[2] + 17 + GRIDLEE_VBEND;
int xpos = sprite[3];
/* get a pointer to the source image */
src = &gfx[64 * image];
/* loop over y */
for (y = 0; y < 16; y++, ypos = (ypos + 1) & 255)
{
int currxor = 0;
/* adjust for flip */
if (m_cocktail_flip)
{
ypos = 271 - ypos;
currxor = 0xff;
}
if (ypos >= (16 + GRIDLEE_VBEND) && ypos >= cliprect.min_y && ypos <= cliprect.max_y)
{
int currx = xpos;
/* loop over x */
for (x = 0; x < 4; x++)
{
int ipixel = *src++;
int left = ipixel >> 4;
int right = ipixel & 0x0f;
/* left pixel */
if (left && currx >= 0 && currx < 256)
bitmap.pix16(ypos, currx ^ currxor) = pens[left];
currx++;
/* right pixel */
if (right && currx >= 0 && currx < 256)
bitmap.pix16(ypos, currx ^ currxor) = pens[right];
currx++;
}
}
else
src += 4;
/* de-adjust for flip */
if (m_cocktail_flip)
ypos = 271 - ypos;
}
