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Intellivision STIC improvements

This commit is contained in:
alyosha-tas 2016-12-28 14:37:49 -05:00 committed by GitHub
parent fc96fe2cba
commit bc92e9cc2b
1 changed files with 9 additions and 5 deletions
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14
BizHawk.Emulation.Cores/Consoles/Intellivision/STIC.cs
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@ -302,9 +302,10 @@ namespace BizHawk.Emulation.Cores.Intellivision
public void Background(int input_row)
{
// here we will also need to apply the 'delay' register values.
// this shifts the background portion of the screen relative to the mobs
// this shifts the displayed portion of the screen relative to the BG
// The background is a 20x12 grid of "cards".
int bg=0;
for (int card_row = input_row; card_row < (input_row+1); card_row++)
{
for (int card_col = 0; card_col < 20; card_col++)
@ -316,7 +317,6 @@ namespace BizHawk.Emulation.Cores.Intellivision
bool gram = ((card & 0x0800) != 0);
int card_num = card >> 3;
int fg = card & 0x0007;
int bg;
if (Fgbg)
{
bg = ((card >> 9) & 0x0008) | ((card >> 11) & 0x0004) | ((card >> 9) & 0x0003);
@ -484,7 +484,7 @@ namespace BizHawk.Emulation.Cores.Intellivision
int min_x = x_border == 0 ? x_delay : x_border;
int min_y = y_border == 0 ? y_delay : y_border;
for (int j=0;j<96;j++)
for (int j=input_row*8;j < (input_row * 8)+8; j++)
{
for (int i = 0; i < 159; i++)
{
@ -492,7 +492,11 @@ namespace BizHawk.Emulation.Cores.Intellivision
{
FrameBuffer[(j * 2) * 176 + (i+8) + BORDER_OFFSET] = BGBuffer[(j - y_delay) * 159 + i - x_delay];
FrameBuffer[(j * 2 + 1) * 176 + (i+8) + BORDER_OFFSET] = BGBuffer[(j - y_delay) * 159 + i - x_delay];
}
} else
{
FrameBuffer[(j * 2) * 176 + (i + 8) + BORDER_OFFSET] = ColorToRGBA(bg);
FrameBuffer[(j * 2 + 1) * 176 + (i + 8) + BORDER_OFFSET] = ColorToRGBA(bg);
}
}
}