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[Re-]Eliminated connection between colour subcarrier frequency and monitor output mode.

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This commit is contained in:
Thomas Harte 2017-01-24 20:48:54 -05:00
parent a66a8c31b2
commit 5761c8267b
2 changed files with 26 additions and 4 deletions
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28
Outputs/CRT/Internals/CRTOpenGL.cpp
View File

@ -371,6 +371,7 @@ void OpenGLOutputBuilder::set_output_device(OutputDevice output_device)
composite_src_output_y_ = 0;
last_output_width_ = 0;
last_output_height_ = 0;
set_output_shader_width();
}
}
@ -418,10 +419,29 @@ void OpenGLOutputBuilder::set_colour_space_uniforms()
if(composite_chrominance_filter_shader_program_) composite_chrominance_filter_shader_program_->set_colour_conversion_matrices(fromRGB, toRGB);
}
float OpenGLOutputBuilder::get_composite_output_width() const
{
return ((float)colour_cycle_numerator_ * 4.0f) / (float)(colour_cycle_denominator_ * IntermediateBufferWidth);
}
void OpenGLOutputBuilder::set_output_shader_width()
{
if(output_shader_program_)
{
float width = 1.0f;
switch(output_device_)
{
case Television: width = get_composite_output_width(); break;
case Monitor: width = 1.0f; break;
}
output_shader_program_->set_input_width_scaler(width);
}
}
void OpenGLOutputBuilder::set_timing_uniforms()
{
const float colour_subcarrier_frequency = (float)colour_cycle_numerator_ / (float)colour_cycle_denominator_;
const float output_width = ((float)colour_cycle_numerator_ * 4.0f) / (float)(colour_cycle_denominator_ * IntermediateBufferWidth);
const float output_width = get_composite_output_width();
const float sample_cycles_per_line = cycles_per_line_ / output_width;
if(composite_separation_filter_program_)
@ -437,12 +457,12 @@ void OpenGLOutputBuilder::set_timing_uniforms()
}
if(rgb_filter_shader_program_)
{
rgb_filter_shader_program_->set_width_scalers(output_width, output_width);
rgb_filter_shader_program_->set_width_scalers(1.0f, 1.0f);
rgb_filter_shader_program_->set_filter_coefficients(sample_cycles_per_line, (float)input_frequency_ * 0.5f);
}
if(output_shader_program_)
{
output_shader_program_->set_input_width_scaler(output_width);
set_output_shader_width();
output_shader_program_->set_timing(height_of_display_, cycles_per_line_, horizontal_scan_period_, vertical_scan_period_, vertical_period_divider_);
}
if(composite_input_shader_program_)
@ -452,6 +472,6 @@ void OpenGLOutputBuilder::set_timing_uniforms()
}
if(rgb_input_shader_program_)
{
rgb_input_shader_program_->set_width_scalers(1.0f, output_width);
rgb_input_shader_program_->set_width_scalers(1.0f, 1.0f);
}
}

2
Outputs/CRT/Internals/CRTOpenGL.hpp
View File

@ -94,6 +94,8 @@ class OpenGLOutputBuilder {
void reset_all_OpenGL_state();
GLsync fence_;
float get_composite_output_width() const;
void set_output_shader_width();
public:
// These two are protected by output_mutex_.