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Avoid recalculation.

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This commit is contained in:
Thomas Harte
2026-02-07 15:32:54 -05:00
parent 2d8f3d8e15
commit 52075f89b2
1 changed files with 3 additions and 6 deletions
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Outputs/OpenGL/ScanTarget.cpp
+3 -6
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@@ -446,13 +446,12 @@ void ScanTarget::update(const int output_width, const int output_height) {
void ScanTarget::process_to_rgb(const OutputArea &area) {
if(area.end.scan != area.begin.scan) {
// Submit all scans.
::submit(scans_, area.begin.scan, area.end.scan, scan_buffer_);
const auto new_scans = ::submit(scans_, area.begin.scan, area.end.scan, scan_buffer_);
// Populate composition buffer.
composition_buffer_.bind_framebuffer();
scans_.bind();
composition_shader_.bind();
const size_t new_scans = distance(area.begin.scan, area.end.scan, scan_buffer_.size());
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_scans)); });
}
@@ -531,11 +530,10 @@ void ScanTarget::output_lines(const OutputArea &area) {
// Submit new lines.
lines_.bind_all();
::submit(lines_, begin, end, line_buffer_);
const auto new_lines = ::submit(lines_, begin, end, line_buffer_);
// Output new lines.
line_output_shader_.bind();
const auto new_lines = distance(begin, end, LineBufferHeight);
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_lines)); });
begin = end;
@@ -579,11 +577,10 @@ void ScanTarget::output_scans(const OutputArea &area) {
// Submit and output new scans.
scans_.bind_all();
::submit(scans_, scan_begin, scan_end, scan_buffer_);
const auto new_scans = ::submit(scans_, scan_begin, scan_end, scan_buffer_);
// Output new scans.
scan_output_shader_.bind();
const auto new_scans = distance(scan_begin, scan_end, scan_buffer_.size());
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_scans)); });
scan_begin = scan_end;