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This is an initial attempt at using the actual Oric colour ROM values for composite video generation.

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This commit is contained in:
Thomas Harte 2016-12-09 20:01:27 -05:00
parent 46ebae7e4b
commit 3b5962b171
1 changed files with 20 additions and 0 deletions
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20
Machines/Oric/Video.cpp
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@ -37,6 +37,26 @@ VideoOutput::VideoOutput(uint8_t *memory) :
"texValue >>= 4 - (int(icoordinate.x * 8) & 4);"
"return vec3( uvec3(texValue) & uvec3(4u, 2u, 1u));"
"}");
crt_->set_composite_sampling_function(
"float composite_sample(usampler2D sampler, vec2 coordinate, vec2 icoordinate, float phase, float amplitude)"
"{"
"float[] array = float[]("
"0.0000, 0.0000, 0.0000, 0.0000, "
"0.1100, 0.3250, 0.3750, 0.1600, "
"0.4100, 0.2150, 0.3250, 0.5200, "
"0.3750, 0.4100, 0.5700, 0.5200, "
"0.2650, 0.2150, 0.0500, 0.1100, "
"0.2650, 0.4100, 0.3250, 0.1600, "
"0.5200, 0.3250, 0.2650, 0.4600, "
"0.5200, 0.5200, 0.5200, 0.5200"
");"
"uint texValue = texture(sampler, coordinate).r;"
"texValue >>= 4 - (int(icoordinate.x * 8) & 4);"
"uint iPhase = uint((phase + 3.141592654 + 0.39269908175) * 2.0 / 3.141592654) & 3u;"
"return array[((texValue & 7u) << 2) + iPhase];" // (texValue << 2)
// "return (mod(phase, 2.0 * 3.141592654) > 3.141592654) ? 0.7273 : 0.3636;" // (texValue << 2)
"}"
);
crt_->set_output_device(Outputs::CRT::Television);
crt_->set_visible_area(crt_->get_rect_for_area(50, 224, 16 * 6, 40 * 6, 4.0f / 3.0f));