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Fixed all colours, plus special case no-chroma for black and white.

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This commit is contained in:
Thomas Harte 2016-06-12 17:41:52 -04:00
parent 580c8bdcbd
commit 6b5a322918
1 changed files with 6 additions and 37 deletions
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43
Components/6560/6560.cpp
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@ -10,38 +10,6 @@
using namespace MOS;
/*
0 - 0000 Black
1 - 0001 White
2 - 0010 Red
3 - 0011 Cyan
4 - 0100 Purple
5 - 0101 Green
6 - 0110 Blue
7 - 0111 Yellow
8 - 1000 Orange
9 - 1001 Light orange
10 - 1010 Pink
11 - 1011 Light cyan
12 - 1100 Light purple
13 - 1101 Light green
14 - 1110 Light blue
15 - 1111 Light yellow
*/
/*
0 -> purple
1 -> purple
2 -> browny yellow
3 -> browny red
4 -> purple
5 -> purple
6 -> cyan
7 -> green
8 -> green
*/
MOS6560::MOS6560() :
_crt(new Outputs::CRT::CRT(65*4, 4, 261, Outputs::CRT::ColourSpace::YUV, 228, 1, 1)), // TODO: turn 261 back into 263 once vertical sync exists
_horizontal_counter(0),
@ -52,10 +20,11 @@ MOS6560::MOS6560() :
"{"
"uint c = texture(texID, coordinate).r;"
"float y = float(c >> 4) / 4.0;"
"float phaseOffset = float(c & 15u) / 16.0;"
"uint yC = c & 15u;"
"float phaseOffset = 6.283185308 * float(yC) / 16.0;"
// "float chroma = step(3.141592654, mod(phase + phaseOffset, 6.283185308)) * 2.0 - 1.0;"
"float chroma = cos(phase + phaseOffset);"
// "float chroma = 2.0*step(mod(phase + phaseOffset + 0.785398163397448, 6.283185308), 3.141592654) - 1.0;"
"float chroma = step(yC, 15) * cos(phase + phaseOffset);"
"return mix(y, chroma, amplitude);"
"}");
@ -71,8 +40,8 @@ MOS6560::MOS6560() :
2, 1, 2, 1,
2, 3, 2, 3
};
uint8_t chrominances[16] = { // range is 0–15
0, 0, 5, 13, 2, 10, 0, 8,
uint8_t chrominances[16] = { // range is 0–15; 15 is a special case meaning "no chrominance"
15, 15, 5, 13, 2, 10, 0, 8,
6, 7, 5, 13, 2, 10, 0, 8,
};
for(int c = 0; c < 16; c++)