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temp zoom code, to be improved / rewritten

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This commit is contained in:
David Haywood 2013-02-22 00:51:55 +00:00
parent 8a00bcaab3
commit ffa0f7b714
1 changed files with 40 additions and 21 deletions
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61
src/mame/drivers/coolridr.c
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@ -1248,14 +1248,19 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
}
if (!m_hZoom || !m_vZoom)
{
m_blitterSerialCount++;
return;
}
int blockwide = ((16*m_hZoom)/0x40);
int blockhigh = ((16*m_vZoom)/0x40);
int blockwide = ((16*m_hZoom)/0x40)-1;
int blockhigh = ((16*m_vZoom)/0x40)-1;
// hack
if (blockwide<=0) blockwide = 1;
if (blockhigh<=0) blockhigh = 1;
UINT32 incx = 0x8000000 / m_hZoom;
UINT32 incy = 0x8000000 / m_vZoom;
// DEBUG: Draw 16x16 block
UINT32* line;
@ -1268,6 +1273,7 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
if (used_flipx)
{
@ -1275,8 +1281,9 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[(15-x)*16+(15-y)];
UINT16 pix = m_tempshape[(15-realx)*16+(15-realy)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
@ -1287,8 +1294,9 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[(15-x)*16+y];
UINT16 pix = m_tempshape[(15-realx)*16+realy];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
@ -1302,6 +1310,7 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
if (used_flipx)
{
@ -1309,8 +1318,9 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[x*16+(15-y)];
UINT16 pix = m_tempshape[realx*16+(15-realy)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
@ -1321,8 +1331,9 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[x*16+y];
UINT16 pix = m_tempshape[realx*16+realy];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
@ -1330,7 +1341,7 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
}
}
}
else
else // no rotate
{
if (used_flipy)
{
@ -1339,6 +1350,7 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
if (used_flipx)
{
@ -1346,8 +1358,9 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[(15-y)*16+(15-x)];
UINT16 pix = m_tempshape[(15-realy)*16+(15-realx)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
@ -1358,42 +1371,48 @@ WRITE32_MEMBER(coolridr_state::sysh1_txt_blit_w)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
UINT16 pix = m_tempshape[(15-y)*16+x];
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[(15-realy)*16+realx];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
}
}
}
else
else // no rotate, no flipy
{
for (int y = 0; y < 16; y++)
for (int y = 0; y < blockhigh; y++)
{
const int drawy = pixelOffsetY+y;
if ((drawy>383) || (drawy<0)) continue;
line = &drawbitmap->pix32(drawy);
int realy = ((y*incy)>>21);
if (used_flipx)
{
for (int x = 0; x < 16; x++)
for (int x = 0; x < blockwide; x++)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[y*16+(15-x)];
UINT16 pix = m_tempshape[realy*16+(15-realx)];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}
}
else
else // no rotate, no flipy, no flipx
{
for (int x = 0; x < 16; x++)
for (int x = 0; x < blockwide; x++)
{
const int drawx = pixelOffsetX+x;
if ((drawx>=495 || drawx<0)) continue;
int realx = ((x*incx)>>21);
UINT16 pix = m_tempshape[y*16+x];
UINT16 pix = m_tempshape[realy*16+realx];
if (pix )
if (line[drawx]==0) line[drawx] = clut[pix+0x4000];
}