mirror of
https://github.com/holub/mame
synced 2025-04-16 13:34:55 +03:00
863 lines
26 KiB
C++
863 lines
26 KiB
C++
// license:BSD-3-Clause
|
|
// copyright-holders:David Haywood, Ryan Holtz
|
|
|
|
#include "emu.h"
|
|
#include "spg_renderer.h"
|
|
|
|
DEFINE_DEVICE_TYPE(SPG_RENDERER, spg_renderer_device, "spg_renderer", "SunPlus / GeneralPlus video rendering")
|
|
|
|
spg_renderer_device::spg_renderer_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
|
|
device_t(mconfig, type, tag, owner, clock),
|
|
m_space_read_cb(*this, 0)
|
|
{
|
|
}
|
|
|
|
spg_renderer_device::spg_renderer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
|
|
spg_renderer_device(mconfig, SPG_RENDERER, tag, owner, clock)
|
|
{
|
|
}
|
|
|
|
void spg_renderer_device::device_start()
|
|
{
|
|
for (uint8_t i = 0; i < 32; i++)
|
|
{
|
|
m_rgb5_to_rgb8[i] = (i << 3) | (i >> 2);
|
|
}
|
|
for (uint16_t i = 0; i < 0x8000; i++)
|
|
{
|
|
m_rgb555_to_rgb888[i] = (m_rgb5_to_rgb8[(i >> 10) & 0x1f] << 16) |
|
|
(m_rgb5_to_rgb8[(i >> 5) & 0x1f] << 8) |
|
|
(m_rgb5_to_rgb8[(i >> 0) & 0x1f] << 0);
|
|
|
|
m_rgb555_to_rgb888_current[i] = 0x0000;
|
|
}
|
|
|
|
save_item(NAME(m_video_regs_1c));
|
|
save_item(NAME(m_video_regs_1d));
|
|
save_item(NAME(m_video_regs_1e));
|
|
|
|
save_item(NAME(m_video_regs_2a));
|
|
|
|
save_item(NAME(m_video_regs_30));
|
|
save_item(NAME(m_video_regs_3c));
|
|
|
|
save_item(NAME(m_video_regs_42));
|
|
|
|
save_item(NAME(m_video_regs_7f));
|
|
|
|
save_item(NAME(m_ycmp_table));
|
|
|
|
save_item(NAME(m_rgb555_to_rgb888_current));
|
|
save_item(NAME(m_brightness_or_saturation_dirty));
|
|
}
|
|
|
|
void spg_renderer_device::device_reset()
|
|
{
|
|
m_video_regs_1c = 0x0000;
|
|
m_video_regs_1d = 0x0000;
|
|
m_video_regs_1e = 0x0000;
|
|
|
|
m_video_regs_2a = 0x0000;
|
|
|
|
m_video_regs_30 = 0x0000;
|
|
m_video_regs_3c = 0x0020;
|
|
|
|
m_video_regs_42 = 0x0001;
|
|
|
|
m_video_regs_7f = 0x0000;
|
|
|
|
for (int i = 0; i < 480; i++)
|
|
{
|
|
m_ycmp_table[i] = 0xffffffff;
|
|
}
|
|
|
|
m_brightness_or_saturation_dirty = true;
|
|
}
|
|
|
|
|
|
// Perform a lerp between a and b
|
|
inline uint8_t spg_renderer_device::mix_channel(uint8_t bottom, uint8_t top, uint8_t alpha)
|
|
{
|
|
return ((0x20 - alpha) * bottom + alpha * top) >> 5;
|
|
}
|
|
|
|
template<spg_renderer_device::blend_enable_t Blend, spg_renderer_device::flipx_t FlipX>
|
|
void spg_renderer_device::draw_tilestrip(bool read_from_csspace, uint32_t screenwidth, uint32_t drawwidthmask, const rectangle& cliprect, uint32_t tile_h, uint32_t tile_w, uint32_t tilegfxdata_addr, uint32_t tile, uint32_t tile_scanline, int drawx, bool flip_y, uint32_t palette_offset, const uint32_t nc_bpp, const uint32_t bits_per_row, const uint32_t words_per_tile, address_space &spc, uint16_t* paletteram, uint8_t blendlevel)
|
|
{
|
|
const uint32_t yflipmask = flip_y ? tile_h - 1 : 0;
|
|
uint32_t m = tilegfxdata_addr + words_per_tile * tile + bits_per_row * (tile_scanline ^ yflipmask);
|
|
uint32_t bits = 0;
|
|
uint32_t nbits = 0;
|
|
|
|
for (int32_t x = FlipX ? (tile_w - 1) : 0; FlipX ? x >= 0 : x < tile_w; FlipX ? x-- : x++)
|
|
{
|
|
int realdrawpos = (drawx + x) & drawwidthmask;
|
|
|
|
bits <<= nc_bpp;
|
|
|
|
if (nbits < nc_bpp)
|
|
{
|
|
if (!read_from_csspace)
|
|
{
|
|
uint16_t b = spc.read_word(m++ & 0x3fffff);
|
|
b = (b << 8) | (b >> 8);
|
|
bits |= b << (nc_bpp - nbits);
|
|
nbits += 16;
|
|
}
|
|
else
|
|
{
|
|
uint16_t b;
|
|
const int addr = m & 0x7ffffff;
|
|
if (addr < m_csbase)
|
|
{
|
|
b = m_cpuspace->read_word(addr);
|
|
}
|
|
else
|
|
{
|
|
b = m_cs_space->read_word(addr-m_csbase);
|
|
}
|
|
m++;
|
|
b = (b << 8) | (b >> 8);
|
|
bits |= b << (nc_bpp - nbits);
|
|
nbits += 16;
|
|
}
|
|
}
|
|
nbits -= nc_bpp;
|
|
|
|
uint32_t pal = palette_offset + (bits >> 16);
|
|
bits &= 0xffff;
|
|
|
|
|
|
if (realdrawpos >= 0 && realdrawpos < screenwidth)
|
|
{
|
|
uint16_t rgb = paletteram[pal];
|
|
|
|
if (!(rgb & 0x8000))
|
|
{
|
|
if (Blend)
|
|
{
|
|
|
|
m_linebuf[realdrawpos] = (mix_channel((uint8_t)(m_linebuf[realdrawpos] >> 10) & 0x1f, (rgb >> 10) & 0x1f, blendlevel) << 10) |
|
|
(mix_channel((uint8_t)(m_linebuf[realdrawpos] >> 5) & 0x1f, (rgb >> 5) & 0x1f, blendlevel) << 5) |
|
|
(mix_channel((uint8_t)(m_linebuf[realdrawpos] >> 0) & 0x1f, (rgb >> 0) & 0x1f, blendlevel) << 0);
|
|
}
|
|
else
|
|
{
|
|
m_linebuf[realdrawpos] = rgb;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void spg_renderer_device::draw_linemap(bool has_extended_tilemaps, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t tilegfxdata_addr, uint16_t* scrollregs, uint16_t* tilemapregs, address_space &spc, uint16_t* paletteram)
|
|
{
|
|
if (has_extended_tilemaps)
|
|
{
|
|
uint32_t ctrl = tilemapregs[1];
|
|
|
|
if (0)
|
|
{
|
|
if (ctrl & 0x0010)
|
|
popmessage("bitmap mode %08x with rowscroll\n", tilegfxdata_addr);
|
|
else
|
|
popmessage("bitmap mode %08x\n", tilegfxdata_addr);
|
|
}
|
|
|
|
// note, in interlace modes it appears every other line is unused? (480 entry table, but with blank values)
|
|
// and furthermore the rowscroll and rowzoom tables only have 240 entries, not enough for every line
|
|
// the end of the rowscroll table (entries 240-255) contain something else, maybe garbage data as it's offscreen, maybe not
|
|
uint32_t tilemap = tilemapregs[2];
|
|
uint32_t palette_map = tilemapregs[3];
|
|
|
|
uint32_t linebase = spc.read_word(tilemap + scanline); // every other word is unused, but there are only enough entries for 240 lines then, sometimes to do with interlace mode?
|
|
uint16_t palette = spc.read_word(palette_map + (scanline / 2));
|
|
|
|
if (scanline & 1)
|
|
palette >>= 8;
|
|
else
|
|
palette &= 0xff;
|
|
|
|
if (!linebase)
|
|
return;
|
|
|
|
linebase = linebase | (palette << 16);
|
|
|
|
int upperpalselect = 0;
|
|
if (has_extended_tilemaps && (tilegfxdata_addr & 0x80000000))
|
|
upperpalselect = 1;
|
|
|
|
tilegfxdata_addr &= 0x7ffffff;
|
|
|
|
// this logic works for jak_s500 and the test modes to get the correct base, doesn't seem to work for jak_car2 ingame, maybe data is copied to wrong place?
|
|
int gfxbase = (tilegfxdata_addr&0x7ffffff) + (linebase&0x7ffffff);
|
|
|
|
for (int i = 0; i < 160; i++) // will have to be 320 for jak_car2 ingame, jak_s500 lines are wider than screen, and zoomed
|
|
{
|
|
uint16_t pix;
|
|
const int addr = gfxbase & 0x7ffffff;
|
|
if (addr < m_csbase)
|
|
{
|
|
pix = m_cpuspace->read_word(addr);
|
|
}
|
|
else
|
|
{
|
|
pix = m_cs_space->read_word(addr-m_csbase);
|
|
}
|
|
gfxbase++;
|
|
|
|
int xx;
|
|
uint16_t pal;
|
|
|
|
if ((scanline >= 0) && (scanline < 480))
|
|
{
|
|
xx = i * 2;
|
|
|
|
pal = (pix & 0xff) | 0x100;
|
|
|
|
if (upperpalselect)
|
|
pal |= 0x200;
|
|
|
|
if (xx >= 0 && xx <= cliprect.max_x)
|
|
{
|
|
uint16_t rgb = paletteram[pal];
|
|
|
|
if (!(rgb & 0x8000))
|
|
{
|
|
m_linebuf[xx] = rgb;
|
|
}
|
|
}
|
|
|
|
xx = (i * 2)+1;
|
|
pal = (pix >> 8) | 0x100;
|
|
|
|
if (upperpalselect)
|
|
pal |= 0x200;
|
|
|
|
if (xx >= 0 && xx <= cliprect.max_x)
|
|
{
|
|
uint16_t rgb = paletteram[pal];
|
|
|
|
if (!(rgb & 0x8000))
|
|
{
|
|
m_linebuf[xx] = rgb;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else // code used for spg2xx cases
|
|
{
|
|
if ((scanline < 0) || (scanline >= 240))
|
|
return;
|
|
|
|
uint32_t tilemap = tilemapregs[2];
|
|
uint32_t palette_map = tilemapregs[3];
|
|
|
|
//if (scanline == 128)
|
|
// popmessage("draw draw_linemap reg0 %04x reg1 %04x bases %04x %04x\n", tilemapregs[0], tilemapregs[1], tilemap, palette_map);
|
|
|
|
//uint32_t xscroll = scrollregs[0];
|
|
uint32_t yscroll = scrollregs[1];
|
|
|
|
int realline = (scanline + yscroll) & 0xff;
|
|
|
|
|
|
uint32_t tile = spc.read_word(tilemap + realline);
|
|
uint16_t palette = 0;
|
|
|
|
//if (!tile)
|
|
// continue;
|
|
|
|
palette = spc.read_word(palette_map + realline / 2);
|
|
if (scanline & 1)
|
|
palette >>= 8;
|
|
else
|
|
palette &= 0x00ff;
|
|
|
|
//const int linewidth = 320 / 2;
|
|
int sourcebase = tile | (palette << 16);
|
|
|
|
uint32_t ctrl = tilemapregs[1];
|
|
|
|
if (ctrl & 0x80) // HiColor mode (rad_digi)
|
|
{
|
|
for (int i = 0; i < 320; i++)
|
|
{
|
|
const uint16_t data = spc.read_word(sourcebase + i);
|
|
|
|
if (!(data & 0x8000))
|
|
{
|
|
m_linebuf[i] = data & 0x7fff;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const uint32_t attr = tilemapregs[0];
|
|
const uint8_t bpp = attr & 0x0003;
|
|
const uint32_t nc_bpp = ((bpp)+1) << 1;
|
|
uint32_t palette_offset = (attr & 0x0f00) >> 4;
|
|
palette_offset >>= nc_bpp;
|
|
palette_offset <<= nc_bpp;
|
|
|
|
uint32_t bits = 0;
|
|
uint32_t nbits = 0;
|
|
|
|
for (int i = 0; i < 320; i++)
|
|
{
|
|
bits <<= nc_bpp;
|
|
if (nbits < nc_bpp)
|
|
{
|
|
uint16_t b = spc.read_word(sourcebase++ & 0x3fffff);
|
|
b = (b << 8) | (b >> 8);
|
|
bits |= b << (nc_bpp - nbits);
|
|
nbits += 16;
|
|
}
|
|
nbits -= nc_bpp;
|
|
|
|
uint32_t pal = palette_offset + (bits >> 16);
|
|
bits &= 0xffff;
|
|
|
|
uint16_t rgb = paletteram[pal];
|
|
|
|
if (!(rgb & 0x8000))
|
|
{
|
|
m_linebuf[i] = rgb;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
// this builds up a line table for the vcmp effect, this is not correct when step is used
|
|
void spg_renderer_device::update_vcmp_table()
|
|
{
|
|
int currentline = 0;
|
|
|
|
int step = m_video_regs_1e & 0xff;
|
|
if (step & 0x80)
|
|
step = step - 0x100;
|
|
|
|
int current_inc_value = (m_video_regs_1c<<4);
|
|
|
|
int counter = 0;
|
|
|
|
for (int i = 0; i < 480; i++)
|
|
{
|
|
if (i < m_video_regs_1d)
|
|
{
|
|
m_ycmp_table[i] = 0xffffffff;
|
|
}
|
|
else
|
|
{
|
|
if ((currentline >= 0) && (currentline < 256))
|
|
{
|
|
m_ycmp_table[i] = currentline;
|
|
}
|
|
|
|
counter += current_inc_value;
|
|
|
|
while (counter >= (0x20<<4))
|
|
{
|
|
currentline++;
|
|
current_inc_value += step;
|
|
|
|
counter -= (0x20<<4);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::draw_tilestrip(bool read_from_csspace, uint32_t screenwidth, uint32_t drawwidthmask, spg_renderer_device::blend_enable_t blend, spg_renderer_device::flipx_t flip_x, const rectangle& cliprect, uint32_t tile_h, uint32_t tile_w, uint32_t tilegfxdata_addr, uint32_t tile, uint32_t tile_scanline, int drawx, bool flip_y, uint32_t palette_offset, const uint32_t nc_bpp, const uint32_t bits_per_row, const uint32_t words_per_tile, address_space& spc, uint16_t* paletteram, uint8_t blendlevel)
|
|
{
|
|
if (blend)
|
|
{
|
|
if (flip_x)
|
|
{
|
|
draw_tilestrip<BlendOn, FlipXOn>(read_from_csspace, screenwidth, drawwidthmask, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, tile_scanline, drawx, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
else
|
|
{
|
|
draw_tilestrip<BlendOn, FlipXOff>(read_from_csspace, screenwidth, drawwidthmask, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, tile_scanline, drawx, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (flip_x)
|
|
{
|
|
draw_tilestrip<BlendOff, FlipXOn>(read_from_csspace, screenwidth, drawwidthmask, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, tile_scanline, drawx, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
else
|
|
{
|
|
draw_tilestrip<BlendOff, FlipXOff>(read_from_csspace, screenwidth, drawwidthmask, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, tile_scanline, drawx, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::draw_page(bool read_from_csspace, bool has_extended_tilemaps, bool use_alt_tile_addressing, uint32_t palbank, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t tilegfxdata_addr, uint16_t* scrollregs, uint16_t* tilemapregs, address_space& spc, uint16_t* paletteram, uint16_t* scrollram, uint32_t which)
|
|
{
|
|
const uint32_t attr = tilemapregs[0];
|
|
const uint32_t ctrl = tilemapregs[1];
|
|
|
|
if (!(ctrl & 0x0008))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (((attr & 0x3000) >> 12) != priority)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (ctrl & 0x0001) // Bitmap / Linemap mode! (basically screen width tile mode)
|
|
{
|
|
draw_linemap(has_extended_tilemaps, cliprect, scanline, priority, tilegfxdata_addr, scrollregs, tilemapregs, spc, paletteram);
|
|
return;
|
|
}
|
|
|
|
uint32_t logical_scanline = scanline;
|
|
|
|
if (ctrl & 0x0040) // 'vertical compression feature' (later models only?)
|
|
{
|
|
// used by senspeed
|
|
//if (m_video_regs_1e != 0x0000)
|
|
// popmessage("vertical compression mode with non-0 step amount %04x offset %04x step %04x\n", m_video_regs_1c, m_video_regs_1d, m_video_regs_1e);
|
|
|
|
logical_scanline = m_ycmp_table[scanline];
|
|
if (logical_scanline == 0xffffffff)
|
|
return;
|
|
}
|
|
|
|
uint32_t total_width;
|
|
uint32_t y_mask;
|
|
uint32_t screenwidth;
|
|
|
|
|
|
if (read_from_csspace && (attr & 0x8000)) // is this only available in high res mode, or always?
|
|
{
|
|
// just a guess based on this being set on the higher resolution tilemaps we've seen, could be 100% incorrect register
|
|
total_width = 1024;
|
|
y_mask = 0x200;
|
|
screenwidth = 640;
|
|
}
|
|
else
|
|
{
|
|
total_width = 512;
|
|
y_mask = 0x100;
|
|
screenwidth = 320;
|
|
}
|
|
|
|
if (has_extended_tilemaps && (attr & 0x4000)) // is this only available in high res mode, or always?
|
|
{
|
|
y_mask <<= 1; // double height tilemap?
|
|
}
|
|
|
|
const uint32_t drawwidthmask = total_width - 1;
|
|
y_mask--; // turn into actual mask
|
|
|
|
const uint32_t xscroll = scrollregs[0];
|
|
const uint32_t yscroll = scrollregs[1];
|
|
const uint32_t tilemap_rambase = tilemapregs[2];
|
|
const uint32_t exattributemap_rambase = tilemapregs[3];
|
|
const int tile_width = (attr & 0x0030) >> 4;
|
|
const uint32_t tile_h = 8 << ((attr & 0x00c0) >> 6);
|
|
const uint32_t tile_w = 8 << (tile_width);
|
|
const uint32_t tile_count_x = total_width / tile_w; // tilemaps are 512 or 1024 wide depending on screen mode?
|
|
const uint32_t bitmap_y = (logical_scanline + yscroll) & y_mask; // tilemaps are 256 or 512 high depending on screen mode?
|
|
const uint32_t y0 = bitmap_y / tile_h;
|
|
const uint32_t tile_scanline = bitmap_y % tile_h;
|
|
const uint8_t bpp = attr & 0x0003;
|
|
const uint32_t nc_bpp = ((bpp)+1) << 1;
|
|
const uint32_t bits_per_row = nc_bpp * tile_w / 16;
|
|
//const uint32_t words_per_tile = bits_per_row * tile_h;
|
|
const bool row_scroll = (ctrl & 0x0010);
|
|
|
|
// Max blend level (3) should result in 100% opacity, per docs
|
|
// Min blend level (0) should result in 25% opacity, per docs
|
|
static const uint8_t s_blend_levels[4] = { 0x08, 0x10, 0x18, 0x20 };
|
|
uint8_t blendlevel = s_blend_levels[m_video_regs_2a & 3];
|
|
|
|
uint32_t words_per_tile;
|
|
|
|
// good for gormiti, smartfp, wrlshunt, paccon, jak_totm, jak_s500, jak_gtg
|
|
if (has_extended_tilemaps && use_alt_tile_addressing)
|
|
{
|
|
words_per_tile = 8;
|
|
}
|
|
else
|
|
{
|
|
words_per_tile = bits_per_row * tile_h;
|
|
}
|
|
|
|
int realxscroll = xscroll;
|
|
if (row_scroll)
|
|
{
|
|
if (!has_extended_tilemaps)
|
|
{
|
|
// Tennis in My Wireless Sports confirms the need to add the scroll value here rather than rowscroll being screen-aligned
|
|
realxscroll += (int16_t)scrollram[(logical_scanline + yscroll) & 0xff];
|
|
}
|
|
else
|
|
{
|
|
// the logic seems to be different on GPL16250, see Galaxian in paccon and Crazy Moto in myac220, is this mode be selected or did behavior just change?
|
|
realxscroll += (int16_t)scrollram[logical_scanline & 0xff];
|
|
}
|
|
}
|
|
|
|
const int upperscrollbits = (realxscroll >> (tile_width + 3));
|
|
const int endpos = (screenwidth + tile_w) / tile_w;
|
|
|
|
int upperpalselect = 0;
|
|
if (has_extended_tilemaps && (tilegfxdata_addr & 0x80000000))
|
|
upperpalselect = 1;
|
|
|
|
tilegfxdata_addr &= 0x7ffffff;
|
|
|
|
for (uint32_t x0 = 0; x0 < endpos; x0++)
|
|
{
|
|
spg_renderer_device::blend_enable_t blend;
|
|
spg_renderer_device::flipx_t flip_x;
|
|
bool flip_y;
|
|
uint32_t tile;
|
|
uint32_t palette_offset;
|
|
|
|
// get tile info
|
|
const int realx0 = (x0 + upperscrollbits) & (tile_count_x - 1);
|
|
uint32_t tile_address = realx0 + (tile_count_x * y0);
|
|
|
|
tile = (ctrl & 0x0004) ? spc.read_word(tilemap_rambase) : spc.read_word(tilemap_rambase + tile_address);
|
|
|
|
if (!tile)
|
|
{
|
|
if (!has_extended_tilemaps)
|
|
{
|
|
// always skip on older SPG types?
|
|
continue;
|
|
}
|
|
else if (m_video_regs_7f & 0x0002)
|
|
{
|
|
// Galaga in paccon won't render '0' characters in the scoring table if you skip empty tiles, so maybe GPL16250 doesn't skip? - extra tile bits from extended read make no difference
|
|
|
|
// probably not based on register m_video_regs_7f, but paccon galaga needs no skip, jak_gtg and jak_hmhsm needs to skip
|
|
//49 0100 1001 no skip (paccon galaga)
|
|
//4b 0100 1011 skip (paccon pacman)
|
|
//53 0101 0011 skip (jak_gtg, jak_hmhsm)
|
|
continue;
|
|
}
|
|
}
|
|
|
|
|
|
uint32_t tileattr = attr;
|
|
uint32_t tilectrl = ctrl;
|
|
|
|
if (has_extended_tilemaps && use_alt_tile_addressing)
|
|
{
|
|
// in this mode what would be the 'palette' bits get used for extra tile bits (even if the usual 'extended table' mode is disabled?)
|
|
// used by smartfp
|
|
uint16_t exattribute = (ctrl & 0x0004) ? spc.read_word(exattributemap_rambase) : spc.read_word(exattributemap_rambase + tile_address / 2);
|
|
if (realx0 & 1)
|
|
exattribute >>= 8;
|
|
else
|
|
exattribute &= 0x00ff;
|
|
|
|
tile |= (exattribute & 0x07) << 16;
|
|
//blendlevel = 0x1f; // hack
|
|
}
|
|
else if ((ctrl & 2) == 0)
|
|
{ // -(1) bld(1) flip(2) pal(4)
|
|
|
|
uint16_t exattribute = (ctrl & 0x0004) ? spc.read_word(exattributemap_rambase) : spc.read_word(exattributemap_rambase + tile_address / 2);
|
|
if (realx0 & 1)
|
|
exattribute >>= 8;
|
|
else
|
|
exattribute &= 0x00ff;
|
|
|
|
|
|
tileattr &= ~0x000c;
|
|
tileattr |= (exattribute >> 2) & 0x000c; // flip
|
|
|
|
tileattr &= ~0x0f00;
|
|
tileattr |= (exattribute << 8) & 0x0f00; // palette
|
|
|
|
tilectrl &= ~0x0100;
|
|
tilectrl |= (exattribute << 2) & 0x0100; // blend
|
|
}
|
|
|
|
if (!has_extended_tilemaps)
|
|
blend = (tilectrl & 0x0100) ? BlendOn : BlendOff;
|
|
else
|
|
blend = ((/*tileattr & 0x4000 ||*/ tilectrl & 0x0100)) ? BlendOn : BlendOff; // is this logic even correct or should it just be like above? where is the extra enable needed?
|
|
|
|
flip_x = (tileattr & 0x0004) ? FlipXOn : FlipXOff;
|
|
flip_y = (tileattr & 0x0008);
|
|
|
|
palette_offset = (tileattr & 0x0f00) >> 4;
|
|
// got tile info
|
|
|
|
if (upperpalselect)
|
|
palette_offset |= 0x200;
|
|
|
|
palette_offset >>= nc_bpp;
|
|
palette_offset <<= nc_bpp;
|
|
|
|
const int drawx = (x0 * tile_w) - (realxscroll & (tile_w - 1));
|
|
draw_tilestrip(read_from_csspace, screenwidth, drawwidthmask, blend, flip_x, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, tile_scanline, drawx, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::draw_sprite(bool read_from_csspace, int extended_sprites_mode, bool alt_extrasprite_hack, uint32_t palbank, bool highres, const rectangle& cliprect, uint32_t scanline, int priority, uint32_t spritegfxdata_addr, uint32_t base_addr, address_space &spc, uint16_t* paletteram, uint16_t* spriteram)
|
|
{
|
|
uint32_t tilegfxdata_addr = spritegfxdata_addr;
|
|
uint32_t tile = spriteram[base_addr + 0];
|
|
int16_t x = spriteram[base_addr + 1];
|
|
int16_t y = spriteram[base_addr + 2];
|
|
uint16_t attr = spriteram[base_addr + 3];
|
|
|
|
if (!tile)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (((attr & 0x3000) >> 12) != priority)
|
|
{
|
|
return;
|
|
}
|
|
|
|
|
|
uint32_t screenwidth = 320;
|
|
// uint32_t screenheight = 240;
|
|
uint32_t screenheight = 256;
|
|
uint32_t xmask = 0x1ff;
|
|
uint32_t ymask = 0x1ff;
|
|
|
|
if (highres)
|
|
{
|
|
screenwidth = 640;
|
|
// screenheight = 480;
|
|
screenheight = 512;
|
|
xmask = 0x3ff;
|
|
ymask = 0x3ff;
|
|
}
|
|
|
|
const uint32_t tile_h = 8 << ((attr & 0x00c0) >> 6);
|
|
const uint32_t tile_w = 8 << ((attr & 0x0030) >> 4);
|
|
|
|
if (!(m_video_regs_42 & 0x0002))
|
|
{
|
|
x = ((screenwidth/2) + x) - tile_w / 2;
|
|
// y = ((screenheight/2) - y) - (tile_h / 2) + 8;
|
|
y = ((screenheight/2) - y) - (tile_h / 2);
|
|
}
|
|
|
|
x &= xmask;
|
|
y &= ymask;
|
|
|
|
int firstline = y;
|
|
int lastline = y + (tile_h - 1);
|
|
lastline &= ymask;
|
|
|
|
const spg_renderer_device::blend_enable_t blend = (attr & 0x4000) ? BlendOn : BlendOff;
|
|
spg_renderer_device::flipx_t flip_x = (attr & 0x0004) ? FlipXOn : FlipXOff;
|
|
const uint8_t bpp = attr & 0x0003;
|
|
const uint32_t nc_bpp = ((bpp)+1) << 1;
|
|
const uint32_t bits_per_row = nc_bpp * tile_w / 16;
|
|
|
|
// Max blend level (3) should result in 100% opacity on the sprite, per docs
|
|
// Min blend level (0) should result in 25% opacity on the sprite, per docs
|
|
static const uint8_t s_blend_levels[4] = { 0x08, 0x10, 0x18, 0x20 };
|
|
uint8_t blendlevel = s_blend_levels[m_video_regs_2a & 3];
|
|
|
|
uint32_t words_per_tile;
|
|
|
|
// good for gormiti, smartfp, wrlshunt, paccon, jak_totm, jak_s500, jak_gtg
|
|
if (extended_sprites_mode && ((m_video_regs_42 & 0x0010) == 0x10))
|
|
{
|
|
// paccon and smartfp use this mode
|
|
words_per_tile = 8;
|
|
|
|
if (!alt_extrasprite_hack) // 1 extra word for each sprite
|
|
{
|
|
// before or after the 0 tile check?
|
|
tile |= (spriteram[(base_addr / 4) + 0x400] & 0x01ff) << 16;
|
|
blendlevel = ((spriteram[(base_addr / 4) + 0x400] & 0x3e00) >> 9);
|
|
}
|
|
else // jak_prft - no /4 to offset in this mode - 4 extra words per sprite instead ? (or is RAM content incorrect for one of these cases?)
|
|
{
|
|
tile |= spriteram[(base_addr) + 0x400] << 16;
|
|
blendlevel = ((spriteram[(base_addr) + 0x400] & 0x3e00) >> 9);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
words_per_tile = bits_per_row * tile_h;
|
|
}
|
|
|
|
|
|
bool flip_y = (attr & 0x0008);
|
|
|
|
// various games don't want the flip bits in the usual place, wrlshunt for example, there's probably a bit to control this
|
|
// and likewise these bits probably now have a different meaning, so this shouldn't be trusted
|
|
// beijuehh does NOT want this either (see characters in 'empire fighter')
|
|
if (extended_sprites_mode)
|
|
{
|
|
if (highres || alt_extrasprite_hack)
|
|
{
|
|
flip_x = FlipXOff;
|
|
flip_y = 0;
|
|
}
|
|
}
|
|
|
|
uint32_t palette_offset = (attr & 0x0f00) >> 4;
|
|
|
|
if (extended_sprites_mode)
|
|
{
|
|
// TODO: tkmag220 / myac220 don't set this bit and expect all sprite palettes to be from the same bank as background palettes
|
|
// beijuehh (extended_sprites_mode == 2) appears to disagree with that logic, it has this set, but expects palettes and sprites
|
|
// from the first bank but also needs the attr & 0x8000 check below for the 'pause' graphics so isn't ignoring the 'extended'
|
|
// capabilities entirely.
|
|
if ((palbank & 1) && (extended_sprites_mode != 2))
|
|
palette_offset |= 0x100;
|
|
|
|
// many other gpl16250 sets have this bit set when they want the upper 256 colours on a per-sprite basis, seems like an extended feature
|
|
if (attr & 0x8000)
|
|
palette_offset |= 0x200;
|
|
}
|
|
|
|
// the Circuit Racing game in PDC100 needs this or some graphics have bad colours at the edges when turning as it leaves stray lower bits set
|
|
palette_offset >>= nc_bpp;
|
|
palette_offset <<= nc_bpp;
|
|
|
|
if (firstline < lastline)
|
|
{
|
|
int scanx = scanline - firstline;
|
|
|
|
if ((scanx >= 0) && (scanline <= lastline))
|
|
{
|
|
draw_tilestrip(read_from_csspace, screenwidth, xmask, blend, flip_x, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, scanx, x, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// clipped from top
|
|
int tempfirstline = firstline - (screenheight<<1);
|
|
int templastline = lastline;
|
|
int scanx = scanline - tempfirstline;
|
|
|
|
if ((scanx >= 0) && (scanline <= templastline))
|
|
{
|
|
draw_tilestrip(read_from_csspace, screenwidth, xmask, blend, flip_x, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, scanx, x, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
// clipped against the bottom
|
|
tempfirstline = firstline;
|
|
templastline = lastline + (screenheight<<1);
|
|
scanx = scanline - tempfirstline;
|
|
|
|
if ((scanx >= 0) && (scanline <= templastline))
|
|
{
|
|
draw_tilestrip(read_from_csspace, screenwidth, xmask, blend, flip_x, cliprect, tile_h, tile_w, tilegfxdata_addr, tile, scanx, x, flip_y, palette_offset, nc_bpp, bits_per_row, words_per_tile, spc, paletteram, blendlevel);
|
|
}
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::draw_sprites(bool read_from_csspace, int extended_sprites_mode, bool alt_extrasprite_hack, uint32_t palbank, bool highres, const rectangle &cliprect, uint32_t scanline, int priority, uint32_t spritegfxdata_addr, address_space &spc, uint16_t* paletteram, uint16_t* spriteram, int sprlimit)
|
|
{
|
|
if (!(m_video_regs_42 & 0x0001))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// paccon suggests this, does older hardware have similar (if so, starting at what point?) or only GPL16250?
|
|
if (sprlimit == -1)
|
|
{
|
|
sprlimit = (m_video_regs_42 & 0xff00) >> 8;
|
|
if (sprlimit == 0)
|
|
sprlimit = 0x100;
|
|
}
|
|
|
|
for (uint32_t n = 0; n < sprlimit; n++)
|
|
{
|
|
draw_sprite(read_from_csspace, extended_sprites_mode, alt_extrasprite_hack, palbank, highres, cliprect, scanline, priority, spritegfxdata_addr, 4 * n, spc, paletteram, spriteram);
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::new_line(const rectangle& cliprect)
|
|
{
|
|
update_palette_lookup();
|
|
|
|
for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
|
|
{
|
|
m_linebuf[x] = 0x0000;
|
|
}
|
|
}
|
|
|
|
void spg_renderer_device::update_palette_lookup()
|
|
{
|
|
if (!m_brightness_or_saturation_dirty)
|
|
return;
|
|
|
|
static const float s_u8_to_float = 1.0f / 255.0f;
|
|
static const float s_gray_r = 0.299f;
|
|
static const float s_gray_g = 0.587f;
|
|
static const float s_gray_b = 0.114f;
|
|
const float sat_adjust = (0xff - (m_video_regs_3c & 0x00ff)) / (float)(0xff - 0x20);
|
|
|
|
const uint16_t fade_offset = m_video_regs_30;
|
|
|
|
for (uint16_t i = 0; i < 0x8000; i++)
|
|
{
|
|
uint32_t src = m_rgb555_to_rgb888[i];
|
|
|
|
if ((m_video_regs_3c & 0x00ff) != 0x0020) // apply saturation
|
|
{
|
|
const uint32_t src_rgb = src;
|
|
const float src_r = (uint8_t)(src_rgb >> 16) * s_u8_to_float;
|
|
const float src_g = (uint8_t)(src_rgb >> 8) * s_u8_to_float;
|
|
const float src_b = (uint8_t)(src_rgb >> 0) * s_u8_to_float;
|
|
const float luma = src_r * s_gray_r + src_g * s_gray_g + src_b * s_gray_b;
|
|
const float adjusted_r = luma + (src_r - luma) * sat_adjust;
|
|
const float adjusted_g = luma + (src_g - luma) * sat_adjust;
|
|
const float adjusted_b = luma + (src_b - luma) * sat_adjust;
|
|
const int integer_r = (int)floor(adjusted_r * 255.0f);
|
|
const int integer_g = (int)floor(adjusted_g * 255.0f);
|
|
const int integer_b = (int)floor(adjusted_b * 255.0f);
|
|
src = (integer_r > 255 ? 0xff0000 : (integer_r < 0 ? 0 : ((uint8_t)integer_r << 16))) |
|
|
(integer_g > 255 ? 0x00ff00 : (integer_g < 0 ? 0 : ((uint8_t)integer_g << 8))) |
|
|
(integer_b > 255 ? 0x0000ff : (integer_b < 0 ? 0 : (uint8_t)integer_b));
|
|
}
|
|
|
|
if (fade_offset != 0) // apply fade
|
|
{
|
|
const uint32_t src_rgb = src;
|
|
const uint8_t src_r = (src_rgb >> 16) & 0xff;
|
|
const uint8_t src_g = (src_rgb >> 8) & 0xff;
|
|
const uint8_t src_b = (src_rgb >> 0) & 0xff;
|
|
const uint8_t r = src_r - fade_offset;
|
|
const uint8_t g = src_g - fade_offset;
|
|
const uint8_t b = src_b - fade_offset;
|
|
src = (r > src_r ? 0 : (r << 16)) |
|
|
(g > src_g ? 0 : (g << 8)) |
|
|
(b > src_b ? 0 : (b << 0));
|
|
}
|
|
|
|
m_rgb555_to_rgb888_current[i] = src;
|
|
}
|
|
|
|
m_brightness_or_saturation_dirty = false;
|
|
}
|
|
|
|
void spg_renderer_device::apply_saturation_and_fade(bitmap_rgb32& bitmap, const rectangle& cliprect, int scanline)
|
|
{
|
|
uint32_t* src = &bitmap.pix(scanline, cliprect.min_x);
|
|
|
|
for (int x = cliprect.min_x; x <= cliprect.max_x; x++)
|
|
{
|
|
*src = m_rgb555_to_rgb888_current[m_linebuf[x]];
|
|
src++;
|
|
}
|
|
}
|