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Realised that phase time can fit inside a single byte, since it's always (well) within the first quarter of the line — and if it somehow weren't (?) then taking it modulo the frequency would do.

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This commit is contained in:
Thomas Harte 2016-05-10 19:14:57 -04:00
parent 47ae402f7e
commit 7369139f7e
2 changed files with 2 additions and 2 deletions
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2
Outputs/CRT/CRT.cpp
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@ -106,7 +106,7 @@ Flywheel::SyncEvent CRT::get_next_horizontal_sync_event(bool hsync_is_requested,
#define source_output_position_y(v) (*(uint16_t *)&next_run[SourceVertexSize*v + SourceVertexOffsetOfOutputPosition + 2])
#define source_phase(v) next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseAndAmplitude + 0]
#define source_amplitude(v) next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseAndAmplitude + 1]
#define source_phase_time(v) (*(uint16_t *)&next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseTime])
#define source_phase_time(v) next_run[SourceVertexSize*v + SourceVertexOffsetOfPhaseTime]
void CRT::advance_cycles(unsigned int number_of_cycles, unsigned int source_divider, bool hsync_requested, bool vsync_requested, const bool vsync_charging, const Scan::Type type, uint16_t tex_x, uint16_t tex_y)
{

2
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -410,7 +410,7 @@ void OpenGLOutputBuilder::prepare_source_vertex_array()
glVertexAttribPointer((GLuint)inputPositionAttribute, 2, GL_UNSIGNED_SHORT, GL_FALSE, vertexStride, (void *)SourceVertexOffsetOfInputPosition);
glVertexAttribPointer((GLuint)outputPositionAttribute, 2, GL_UNSIGNED_SHORT, GL_FALSE, vertexStride, (void *)SourceVertexOffsetOfOutputPosition);
glVertexAttribPointer((GLuint)phaseAndAmplitudeAttribute, 2, GL_UNSIGNED_BYTE, GL_TRUE, vertexStride, (void *)SourceVertexOffsetOfPhaseAndAmplitude);
glVertexAttribPointer((GLuint)phaseTimeAttribute, 2, GL_UNSIGNED_SHORT, GL_FALSE, vertexStride, (void *)SourceVertexOffsetOfPhaseTime);
glVertexAttribPointer((GLuint)phaseTimeAttribute, 1, GL_UNSIGNED_BYTE, GL_FALSE, vertexStride, (void *)SourceVertexOffsetOfPhaseTime);
}
}