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Fix SuperHiRes rendering for AnalogGS

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This commit is contained in:
David Kuder 2023-04-16 23:20:33 -04:00
parent 77574312ea
commit 8acc28abb5
1 changed files with 15 additions and 6 deletions
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21
vga/render_shr.c
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@ -48,20 +48,29 @@ static void DELAYED_COPY_CODE(render_shr_line)(uint16_t line) {
i = 0;
if(control & 0x80) { // 640 Pixels
while(i < 160) {
// Load in the next 2 pixels
// Load in the next 4 pixels
dots = (line_mem[i++] & 0xff);
color_a = ((dots >> 4) & 0xf);
color_b = ((dots >> 0) & 0xf);
color_a = ((dots >> 6) & 0x3);
color_b = ((dots >> 4) & 0x3);
// Consume 2 pixels
pixeldata = rgb444(shr_palette[color_a]) | THEN_EXTEND_1;
pixeldata |= (rgb444(shr_palette[color_b]) | THEN_EXTEND_1) << 16;
pixeldata = rgb444(shr_palette[color_a | 0x8]);
pixeldata |= (rgb444(shr_palette[color_b | 0xC])) << 16;
sl->data[sl_pos++] = pixeldata;
color_a = ((dots >> 2) & 0x3);
color_b = ((dots >> 0) & 0x3);
// Consume 2 pixels
pixeldata = rgb444(shr_palette[color_a | 0x0]);
pixeldata |= (rgb444(shr_palette[color_b | 0x4])) << 16;
sl->data[sl_pos++] = pixeldata;
}
} else if(control & 0x40) { // 320 Pixels w/ color fill
while(i < 160) {
// Load in the next 4 subpixels
// Load in the next 2 pixels
dots = (line_mem[i++] & 0xff);
// Consume 2 pixels