//-------------------------------------------------
// transpen_mask - return a mask of pens that
// whose indirect values match the given
// transcolor
//-------------------------------------------------
public u32 transpen_mask(gfx_element gfx, u32 color, indirect_pen_t transcolor)
{
u32 entry = gfx.colorbase() + (color % gfx.colors()) * gfx.granularity();
// make sure we are in range
assert(entry < m_indirect_pens.size());
assert(gfx.depth() <= 32);
// either gfx->color_depth entries or as many as we can get up until the end
int count = (int)Math.Min((UInt32)gfx.depth(), m_indirect_pens.size() - entry);
// set a bit anywhere the transcolor matches
u32 mask = 0;
for (int bit = 0; bit < count; bit++)
{
if (m_indirect_pens[(int)entry++] == transcolor)
{
mask |= (UInt32)1 << bit;
}
}
// return the final mask
return(mask);
}
// decoding
//-------------------------------------------------
// decode_gfx - parse gfx decode info and
// create gfx elements
//-------------------------------------------------
void decode_gfx(gfx_decode_entry [] gfxdecodeinfo)
{
// skip if nothing to do
if (gfxdecodeinfo == null)
{
return;
}
// local variables to hold mutable copies of gfx layout data
gfx_layout glcopy;
std.vector <u32> extxoffs = new std.vector <u32>(0);
std.vector <u32> extyoffs = new std.vector <u32>(0);
// loop over all elements
for (u8 curgfx = 0; curgfx < digfx_global.MAX_GFX_ELEMENTS && curgfx < gfxdecodeinfo.Length && gfxdecodeinfo[curgfx].gfxlayout != null; curgfx++)
{
gfx_decode_entry gfx = gfxdecodeinfo[curgfx];
// extract the scale factors and xormask
u32 xscale = GFXENTRY_GETXSCALE(gfx.flags);
u32 yscale = GFXENTRY_GETYSCALE(gfx.flags);
u32 xormask = GFXENTRY_ISREVERSE(gfx.flags) ? 7U : 0U;
// resolve the region
u32 region_length;
ListBytesPointer region_base; //const u8 *region_base;
u8 region_width;
endianness_t region_endianness;
if (gfx.memory_region != null)
{
device_t basedevice = (GFXENTRY_ISDEVICE(gfx.flags)) ? device() : device().owner();
if (GFXENTRY_ISRAM(gfx.flags))
{
memory_share share = basedevice.memshare(gfx.memory_region);
//assert(share != NULL);
region_length = (UInt32)(8 * share.bytes());
region_base = share.ptr(); //region_base = reinterpret_cast<u8 *>(share->ptr());
region_width = share.bytewidth();
region_endianness = share.endianness();
}
else
{
memory_region region = basedevice.memregion(gfx.memory_region);
//assert(region != NULL);
region_length = 8 * region.bytes();
region_base = new ListBytesPointer(region.base_(), 0); //region_base = region->base();
region_width = region.bytewidth();
region_endianness = region.endianness();
}
}
else
{
region_length = 0;
region_base = null;
region_width = 1;
region_endianness = ENDIANNESS_NATIVE;
}
if (region_endianness != ENDIANNESS_NATIVE)
{
switch (region_width)
{
case 2:
xormask |= 0x08;
break;
case 4:
xormask |= 0x18;
break;
case 8:
xormask |= 0x38;
break;
}
}
// copy the layout into our temporary variable
glcopy = new gfx_layout(gfx.gfxlayout); //memcpy(&glcopy, gfx.gfxlayout, sizeof(gfx_layout));
// if the character count is a region fraction, compute the effective total
if (IS_FRAC(glcopy.total))
{
//assert(region_length != 0);
glcopy.total = region_length / glcopy.charincrement * FRAC_NUM(glcopy.total) / FRAC_DEN(glcopy.total);
}
// for non-raw graphics, decode the X and Y offsets
if (glcopy.planeoffset[0] != digfx_global.GFX_RAW)
{
// copy the X and Y offsets into our temporary arrays
extxoffs.resize((int)(glcopy.width * xscale));
extyoffs.resize((int)(glcopy.height * yscale));
//memcpy(&extxoffs[0], (glcopy.extxoffs != null) ? glcopy.extxoffs : glcopy.xoffset, glcopy.width * sizeof(UInt32));
//memcpy(&extyoffs[0], (glcopy.extyoffs != null) ? glcopy.extyoffs : glcopy.yoffset, glcopy.height * sizeof(UInt32));
for (int i = 0; i < glcopy.width; i++)
{
extxoffs[i] = glcopy.extxoffs != null ? glcopy.extxoffs[i] : glcopy.xoffset[i];
}
for (int i = 0; i < glcopy.height; i++)
{
extyoffs[i] = glcopy.extyoffs != null ? glcopy.extyoffs[i] : glcopy.yoffset[i];
}
// always use the extended offsets here
glcopy.extxoffs = extxoffs;
glcopy.extyoffs = extyoffs;
// expand X and Y by the scale factors
if (xscale > 1)
{
glcopy.width *= (UInt16)xscale;
for (int j = glcopy.width - 1; j >= 0; j--)
{
extxoffs[j] = extxoffs[(int)(j / xscale)];
}
}
if (yscale > 1)
{
glcopy.height *= (UInt16)yscale;
for (int j = glcopy.height - 1; j >= 0; j--)
{
extyoffs[j] = extyoffs[(int)(j / yscale)];
}
}
// loop over all the planes, converting fractions
for (int j = 0; j < glcopy.planes; j++)
{
u32 value1 = glcopy.planeoffset[j];
if (IS_FRAC(value1))
{
//assert(region_length != 0);
glcopy.planeoffset[j] = FRAC_OFFSET(value1) + region_length * FRAC_NUM(value1) / FRAC_DEN(value1);
}
}
// loop over all the X/Y offsets, converting fractions
for (int j = 0; j < glcopy.width; j++)
{
u32 value2 = extxoffs[j];
if (digfx_global.IS_FRAC(value2))
{
//assert(region_length != 0);
extxoffs[j] = FRAC_OFFSET(value2) + region_length * FRAC_NUM(value2) / FRAC_DEN(value2);
}
}
for (int j = 0; j < glcopy.height; j++)
{
u32 value3 = extyoffs[j];
if (IS_FRAC(value3))
{
//assert(region_length != 0);
extyoffs[j] = FRAC_OFFSET(value3) + region_length * FRAC_NUM(value3) / FRAC_DEN(value3);
}
}
}
// otherwise, just use the line modulo
else
{
int base_ = (int)gfx.start;
int end = (int)(region_length / 8);
int linemod = (int)glcopy.yoffset[0];
while (glcopy.total > 0)
{
int elementbase = (int)(base_ + (glcopy.total - 1) * glcopy.charincrement / 8);
int lastpixelbase = elementbase + glcopy.height * linemod / 8 - 1;
if (lastpixelbase < end)
{
break;
}
glcopy.total--;
}
}
// allocate the graphics
//m_gfx[curgfx] = new gfx_element(m_palette, glcopy, region_base != null ? region_base + gfx.start : null, xormask, gfx.total_color_codes, gfx.color_codes_start);
m_gfx[curgfx] = new gfx_element(m_paletteDevice.target.palette_interface, glcopy, region_base != null ? new ListBytesPointer(region_base, (int)gfx.start) : null, xormask, gfx.total_color_codes, gfx.color_codes_start);
}
m_decoded = true;
}
public u32 transpen_mask(gfx_element gfx, u32 color, indirect_pen_t transcolor)
{
return(dipalette.transpen_mask(gfx, color, transcolor));
}
//-------------------------------------------------
// render_object: Internal processing callback
// that renders to the backing bitmap and then
// copies the result to the destination.
//-------------------------------------------------
void render_object(bitmap_ind16 bitmap, rectangle cliprect, Pointer <uint16_t> entry) //void atari_motion_objects_device::render_object(bitmap_ind16 &bitmap, const rectangle &cliprect, const uint16_t *entry)
{
// select the gfx element and save off key information
int rawcode = (int)m_codemask.extract(entry);
gfx_element gfx = m_gfxdecode.op0.gfx(m_gfxlookup[rawcode >> 8]);
int save_granularity = gfx.granularity();
int save_colorbase = (int)gfx.colorbase();
int save_colors = (int)gfx.colors();
gfx.set_granularity(1);
gfx.set_colorbase(0);
gfx.set_colors(65536);
// extract data from the various words
int code = (int)m_codelookup[rawcode];
int color = m_colorlookup[m_colormask.extract(entry)];
int xpos = m_xposmask.extract(entry) + m_xoffset;
int ypos = -m_yposmask.extract(entry);
int hflip = m_hflipmask.extract(entry);
int vflip = m_vflipmask.extract(entry);
int width = m_widthmask.extract(entry) + 1;
int height = m_heightmask.extract(entry) + 1;
int priority = m_prioritymask.extract(entry);
// compute the effective color, merging in priority
color = (color * save_granularity) | (priority << PRIORITY_SHIFT);
color += m_atari_motion_objects_config.m_palettebase;
// add in the scroll positions if we're not in absolute coordinates
if (m_absolutemask.extract(entry) == 0)
{
xpos -= (int)m_xscroll;
ypos -= (int)m_yscroll;
}
// adjust for height
ypos -= height << m_tileyshift;
// handle previous hold bits
if (m_next_xpos != 123456)
{
xpos = (int)m_next_xpos;
}
m_next_xpos = 123456;
// check for the hold bit
if (m_neighbormask.extract(entry) != 0)
{
if (!m_atari_motion_objects_config.m_nextneighbor)
{
xpos = (int)m_last_xpos + m_tilewidth;
}
else
{
m_next_xpos = (uint32_t)(xpos + m_tilewidth);
}
}
m_last_xpos = (uint32_t)xpos;
// adjust the final coordinates
xpos &= m_bitmapxmask;
ypos &= m_bitmapymask;
if (xpos >= bitmap.width())
{
xpos -= m_bitmapwidth;
}
if (ypos >= bitmap.height())
{
ypos -= m_bitmapheight;
}
// is this one special?
if (m_specialmask.mask() == 0 || m_specialmask.extract(entry) != m_atari_motion_objects_config.m_specialvalue)
{
// adjust for h flip
int xadv = m_tilewidth;
if (hflip != 0)
{
xpos += (width - 1) << m_tilexshift;
xadv = -xadv;
}
// adjust for v flip
int yadv = m_tileheight;
if (vflip != 0)
{
ypos += (height - 1) << m_tileyshift;
yadv = -yadv;
}
// standard order is: loop over Y first, then X
if (!m_atari_motion_objects_config.m_swapxy)
{
// loop over the height
for (int y = 0, sy = ypos; y < height; y++, sy += yadv)
{
// clip the Y coordinate
if (sy <= cliprect.top() - m_tileheight)
{
code += width;
continue;
}
else if (sy > cliprect.bottom())
{
break;
}
// loop over the width
for (int x = 0, sx = xpos; x < width; x++, sx += xadv, code++)
{
// clip the X coordinate
if (sx <= -cliprect.left() - m_tilewidth || sx > cliprect.right())
{
continue;
}
// draw the sprite
gfx.transpen_raw(bitmap, cliprect, (u32)code, (u32)color, hflip, vflip, sx, sy, m_atari_motion_objects_config.m_transpen);
mark_dirty(sx, sx + m_tilewidth - 1, sy, sy + m_tileheight - 1);
}
}
}
// alternative order is swapped
else
{
// loop over the width
for (int x = 0, sx = xpos; x < width; x++, sx += xadv)
{
// clip the X coordinate
if (sx <= cliprect.left() - m_tilewidth)
{
code += height;
continue;
}
else if (sx > cliprect.right())
{
break;
}
// loop over the height
for (int y = 0, sy = ypos; y < height; y++, sy += yadv, code++)
{
// clip the X coordinate
if (sy <= -cliprect.top() - m_tileheight || sy > cliprect.bottom())
{
continue;
}
// draw the sprite
gfx.transpen_raw(bitmap, cliprect, (u32)code, (u32)color, hflip, vflip, sx, sy, m_atari_motion_objects_config.m_transpen);
mark_dirty(sx, sx + m_tilewidth - 1, sy, sy + m_tileheight - 1);
}
}
}
}
// restore original gfx information
gfx.set_granularity((u16)save_granularity);
gfx.set_colorbase((u16)save_colorbase);
gfx.set_colors((u32)save_colors);
}
//void apply_stain(bitmap_ind16 &bitmap, uint16_t *pf, uint16_t *mo, int x, int y);
// memory access
//uint16_t &slipram(int offset) { return m_slipram[offset]; }
// device-level overrides
//-------------------------------------------------
// device_start: Start up the device
//-------------------------------------------------
protected override void device_start()
{
// call parent
base.device_start();
// verify configuration
gfx_element gfx = m_gfxdecode.op0.gfx(m_atari_motion_objects_config.m_gfxindex);
if (gfx == null)
{
throw new emu_fatalerror("No gfxelement #{0}!", m_atari_motion_objects_config.m_gfxindex);
}
// determine the masks
m_linkmask.set(m_atari_motion_objects_config.m_link_entry);
m_codemask.set(m_atari_motion_objects_config.m_code_entry);
m_colormask.set(m_atari_motion_objects_config.m_color_entry);
m_xposmask.set(m_atari_motion_objects_config.m_xpos_entry);
m_yposmask.set(m_atari_motion_objects_config.m_ypos_entry);
m_widthmask.set(m_atari_motion_objects_config.m_width_entry);
m_heightmask.set(m_atari_motion_objects_config.m_height_entry);
m_hflipmask.set(m_atari_motion_objects_config.m_hflip_entry);
m_vflipmask.set(m_atari_motion_objects_config.m_vflip_entry);
m_prioritymask.set(m_atari_motion_objects_config.m_priority_entry);
m_neighbormask.set(m_atari_motion_objects_config.m_neighbor_entry);
m_absolutemask.set(m_atari_motion_objects_config.m_absolute_entry);
// derive tile information
m_tilewidth = gfx.width();
m_tileheight = gfx.height();
m_tilexshift = compute_log(m_tilewidth);
m_tileyshift = compute_log(m_tileheight);
// derive bitmap information
m_bitmapwidth = round_to_powerof2(m_xposmask.mask());
m_bitmapheight = round_to_powerof2(m_yposmask.mask());
m_bitmapxmask = m_bitmapwidth - 1;
m_bitmapymask = m_bitmapheight - 1;
// derive sprite information
m_entrycount = round_to_powerof2(m_linkmask.mask());
m_entrybits = compute_log(m_entrycount);
m_spriteramsize = m_atari_motion_objects_config.m_bankcount * m_entrycount;
m_spriterammask = m_spriteramsize - 1;
m_slipshift = (m_atari_motion_objects_config.m_slipheight != 0) ? compute_log(m_atari_motion_objects_config.m_slipheight) : 0;
m_slipramsize = m_bitmapheight >> m_slipshift;
m_sliprammask = m_slipramsize - 1;
if (m_atari_motion_objects_config.m_maxperline == 0)
{
m_atari_motion_objects_config.m_maxperline = MAX_PER_BANK;
}
// Get the slipram from the share if not already explicitly set
if (m_slipram == null)
{
m_slipram = new Pointer <u16>(m_slipramshare.op);
}
// allocate and initialize the code lookup
int codesize = round_to_powerof2((int)m_codemask.mask());
m_codelookup.resize((size_t)codesize);
for (int i = 0; i < codesize; i++)
{
m_codelookup[i] = (uint32_t)i;
}
// allocate and initialize the color lookup
int colorsize = round_to_powerof2((int)m_colormask.mask());
m_colorlookup.resize((size_t)colorsize);
for (int i = 0; i < colorsize; i++)
{
m_colorlookup[i] = (uint8_t)i;
}
// allocate and the gfx lookup
int gfxsize = codesize / 256;
m_gfxlookup.resize((size_t)gfxsize);
for (int i = 0; i < gfxsize; i++)
{
m_gfxlookup[i] = m_atari_motion_objects_config.m_gfxindex;
}
// allocate a timer to periodically force update
m_force_update_timer = timer_alloc(TID_FORCE_UPDATE);
m_force_update_timer.adjust(m_divideo.screen().time_until_pos(0));
// register for save states
save_item(NAME(new { m_bank }));
save_item(NAME(new { m_xscroll }));
save_item(NAME(new { m_yscroll }));
}