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Connected machine-supplied colour burst amplitude to shader, discarding hard-coded value. Net effect: the colour component is now discarded for the ZX80 and 81.

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This commit is contained in:
Thomas Harte 2017-07-06 21:29:08 -04:00
parent c6d00ec7d1
commit 4211389ac7
2 changed files with 2 additions and 2 deletions
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2
Outputs/CRT/CRT.cpp
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@ -113,7 +113,7 @@ Flywheel::SyncEvent CRT::get_next_horizontal_sync_event(bool hsync_is_requested,
#define source_output_position_y() (*(uint16_t *)&next_run[SourceVertexOffsetOfOutputStart + 2])
#define source_output_position_x2() (*(uint16_t *)&next_run[SourceVertexOffsetOfEnds + 2])
#define source_phase() next_run[SourceVertexOffsetOfPhaseTimeAndAmplitude + 0]
#define source_amplitude() next_run[SourceVertexOffsetOfPhaseTimeAndAmplitude + 2]
#define source_amplitude() next_run[SourceVertexOffsetOfPhaseTimeAndAmplitude + 1]
void CRT::advance_cycles(unsigned int number_of_cycles, bool hsync_requested, bool vsync_requested, const Scan::Type type) {
std::unique_lock<std::mutex> output_lock = openGL_output_builder_.get_output_lock();

2
Outputs/CRT/Internals/Shaders/IntermediateShader.cpp
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@ -97,7 +97,7 @@ std::unique_ptr<IntermediateShader> IntermediateShader::make_shader(const std::s
// setup phaseAndAmplitudeVarying.y as colour burst amplitude;
// setup phaseAndAmplitudeVarying.z as 1 / (colour burst amplitude), or 0.0 if amplitude is 0.0;
"phaseAndAmplitudeVarying.x = (extendedOutputPosition.x + (phaseTimeAndAmplitude.x / 64.0)) * 0.5 * 3.141592654;"
"phaseAndAmplitudeVarying.y = 0.33;" // TODO: reinstate connection with phaseTimeAndAmplitude.y / 255.0;"
"phaseAndAmplitudeVarying.y = phaseTimeAndAmplitude.y / 255.0;"
"phaseAndAmplitudeVarying.z = (phaseAndAmplitudeVarying.y > 0.0) ? 1.0 / phaseAndAmplitudeVarying.y : 0.0;"
// determine output position by scaling the output position according to the texture size