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Sega, think different, or just be schizophrenic

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This commit is contained in:
David Haywood 2013-02-23 12:45:01 +00:00
parent 390ad426d2
commit c294f1a47b
1 changed files with 37 additions and 6 deletions
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43
src/mame/drivers/coolridr.c
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@ -438,6 +438,7 @@ public:
UINT8* m_compressedgfx;
UINT16* m_expanded_10bit_gfx;
UINT16* m_rearranged_16bit_gfx;
UINT32 get_20bit_data(UINT32 romoffset, int _20bitwordnum);
UINT16 get_10bit_data(UINT32 romoffset, int _10bitwordnum);
@ -659,13 +660,17 @@ TODO: fix anything that isn't text.
if (!line[drawx]) \
{ \
int r,g,b; \
int dot; \
UINT16 dot; \
int color_offs; \
color_offs = (b1colorNumber & 0x3ff)*0x40; \
color_offs+= pix & 0x3e; \
color_offs+= (pix & 0x01)*0x400000; \
color_offs+= 0x1ec800; \
dot = (m_compressedgfx[color_offs+0]<<8) | m_compressedgfx[color_offs+1]; \
/* color_offs = (b1colorNumber & 0x3ff)*0x40;*/ \
/* color_offs+= (pix & 0x38)>>2; */ \
/* color_offs+= (pix & 0x07)*0x400000; */ \
/* color_offs+= 0x1ec800; */ \
/* dot = (m_compressedgfx[color_offs+0]<<8) | m_compressedgfx[color_offs+1]; */ \
color_offs = (b1colorNumber & 0x3ff)*0x40 * 5; /* yes, * 5 */ \
color_offs+= (pix & 0x3f); \
color_offs+= 0x1ec800 * 5; \
dot = (m_rearranged_16bit_gfx[color_offs]); \
r = pal5bit((dot >> 10) & 0x1f); \
g = pal5bit((dot >> 5) & 0x1f); \
b = pal5bit((dot >> 0) & 0x1f); \
@ -674,6 +679,10 @@ TODO: fix anything that isn't text.
} \
} \
//m_rearranged_16bit_gfx
//m_expanded_10bit_gfx
/* This is a RLE-based sprite blitter (US Patent #6,141,122), very unusual from Sega... */
void coolridr_state::blit_current_sprite(address_space &space)
{
@ -2293,6 +2302,28 @@ void coolridr_state::machine_start()
m_expanded_10bit_gfx[i] = get_10bit_data( 0, i);
}
// do a rearranged version too with just the 16-bit words in a different order, palettes seem to
// be referenced this way?!
m_rearranged_16bit_gfx = auto_alloc_array(machine(), UINT16, size/2);
UINT16* compressed = (UINT16*)memregion( "compressedgfx" )->base();
int count = 0;
for (int i=0;i<size/2/10;i++)
{
m_rearranged_16bit_gfx[count+0] = ((compressed[i+((0x0400000/2)*0)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*0)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+1] = ((compressed[i+((0x0400000/2)*1)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*1)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+2] = ((compressed[i+((0x0400000/2)*2)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*2)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+3] = ((compressed[i+((0x0400000/2)*3)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*3)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+4] = ((compressed[i+((0x0400000/2)*4)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*4)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+5] = ((compressed[i+((0x0400000/2)*5)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*5)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+6] = ((compressed[i+((0x0400000/2)*6)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*6)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+7] = ((compressed[i+((0x0400000/2)*7)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*7)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+8] = ((compressed[i+((0x0400000/2)*8)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*8)]&0xff00) >> 8);
m_rearranged_16bit_gfx[count+9] = ((compressed[i+((0x0400000/2)*9)]&0x00ff) << 8) | ((compressed[i+((0x0400000/2)*9)]&0xff00) >> 8);
count+=10;
}
if (0)
{
FILE *fp;