#include "emu.h"
#include "video/konicdev.h"
#include "includes/rockrage.h"
PALETTE_INIT( rockrage )
{
int i;
/* allocate the colortable */
machine.colortable = colortable_alloc(machine, 0x40);
/* sprites */
for (i = 0x20; i < 0x40; i++)
colortable_entry_set_value(machine.colortable, i, i);
/* characters */
for (i = 0x40; i < 0x140; i++)
{
UINT8 ctabentry;
ctabentry = (color_prom[(i - 0x40) + 0x000] & 0x0f) | 0x00;
colortable_entry_set_value(machine.colortable, i + 0x000, ctabentry);
ctabentry = (color_prom[(i - 0x40) + 0x100] & 0x0f) | 0x10;
colortable_entry_set_value(machine.colortable, i + 0x100, ctabentry);
}
}
static void set_pens( running_machine &machine )
{
rockrage_state *state = machine.driver_data<rockrage_state>();
int i;
for (i = 0x00; i < 0x80; i += 2)
{
UINT16 data = state->m_paletteram[i] | (state->m_paletteram[i | 1] << 8);
rgb_t color = MAKE_RGB(pal5bit(data >> 0), pal5bit(data >> 5), pal5bit(data >> 10));
colortable_palette_set_color(machine.colortable, i >> 1, color);
}
}
/***************************************************************************
Callback for the K007342
***************************************************************************/
void rockrage_tile_callback( running_machine &machine, int layer, int bank, int *code, int *color, int *flags )
{
rockrage_state *state = machine.driver_data<rockrage_state>();
if (layer == 1)
*code |= ((*color & 0x40) << 2) | ((bank & 0x01) << 9);
else
*code |= ((*color & 0x40) << 2) | ((bank & 0x03) << 10) | ((state->m_vreg & 0x04) << 7) | ((state->m_vreg & 0x08) << 9);
*color = state->m_layer_colorbase[layer] + (*color & 0x0f);
}
/***************************************************************************
Callback for the K007420
***************************************************************************/
void rockrage_sprite_callback( running_machine &machine, int *code, int *color )
{
rockrage_state *state = machine.driver_data<rockrage_state>();
*code |= ((*color & 0x40) << 2) | ((*color & 0x80) << 1) * ((state->m_vreg & 0x03) << 1);
*code = (*code << 2) | ((*color & 0x30) >> 4);
*color = 0;
}
WRITE8_HANDLER( rockrage_vreg_w )
{
/* bits 4-7: unused */
/* bit 3: bit 4 of bank # (layer 0) */
/* bit 2: bit 1 of bank # (layer 0) */
/* bits 0-1: sprite bank select */
rockrage_state *state = space->machine().driver_data<rockrage_state>();
if ((data & 0x0c) != (state->m_vreg & 0x0c))
tilemap_mark_all_tiles_dirty_all(space->machine());
state->m_vreg = data;
}
/***************************************************************************
Screen Refresh
***************************************************************************/
SCREEN_UPDATE( rockrage )
{
rockrage_state *state = screen->machine().driver_data<rockrage_state>();
set_pens(screen->machine());
k007342_tilemap_update(state->m_k007342);
k007342_tilemap_draw(state->m_k007342, bitmap, cliprect, 0, TILEMAP_DRAW_OPAQUE, 0);
k007420_sprites_draw(state->m_k007420, bitmap, cliprect, screen->machine().gfx[1]);
k007342_tilemap_draw(state->m_k007342, bitmap, cliprect, 0, 1 | TILEMAP_DRAW_OPAQUE, 0);
k007342_tilemap_draw(state->m_k007342, bitmap, cliprect, 1, 0, 0);
k007342_tilemap_draw(state->m_k007342, bitmap, cliprect, 1, 1, 0);
return 0;
}