6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2026-04-24 05:18:36 +00:00
Code Issues Projects Releases Wiki Activity

Improves filtering slightly, and ensures coefficients are always set when needed.

Browse Source
This commit is contained in:
Thomas Harte
2019-02-26 22:35:55 -05:00
parent 694783efe9
commit 79707a3c66
2 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Outputs/OpenGL/ScanTargetGLSLFragments.cpp
+2 -2
View File
@@ -58,12 +58,12 @@ void ScanTarget::set_uniforms(ShaderType type, Shader &target) const {
void ScanTarget::set_sampling_window(int output_width, int output_height, Shader &target) {
if(modals_.display_type != DisplayType::CompositeColour) {
const float one_pixel_width = float(output_width) * modals_.visible_area.size.width / float(modals_.cycles_per_line);
const float one_pixel_width = float(modals_.cycles_per_line) * modals_.visible_area.size.width / float(output_width);
const float clocks_per_angle = float(modals_.cycles_per_line) * float(modals_.colour_cycle_denominator) / float(modals_.colour_cycle_numerator);
GLfloat texture_offsets[4];
GLfloat angles[4];
for(int c = 0; c < 4; ++c) {
texture_offsets[c] = ((one_pixel_width * float(c)) / 3.0f) - (one_pixel_width * 0.5f);
texture_offsets[c] = 1.5f * (((one_pixel_width * float(c)) / 3.0f) - (one_pixel_width * 0.5f));
angles[c] = GLfloat((texture_offsets[c] / clocks_per_angle) * 2.0f * M_PI);
}
target.set_uniform("textureCoordinateOffsets", 1, 4, texture_offsets);