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Overtly rebind all textures.

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This is defensive, based on prior experience of Qt, which seems to reserve the right to mutate your OpenGL state.
This commit is contained in:
Thomas Harte
2026-02-09 11:03:24 -05:00
parent 2e663e60a1
commit 0d83b4a808
1 changed files with 7 additions and 0 deletions
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7
Outputs/OpenGL/ScanTarget.cpp
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@@ -477,6 +477,7 @@ void ScanTarget::process_to_rgb(const OutputArea &area) {
// Populate composition buffer.
composition_buffer_.bind_framebuffer();
scans_.bind();
source_texture_.bind();
composition_shader_.bind();
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_scans)); });
}
@@ -505,6 +506,7 @@ void ScanTarget::process_to_rgb(const OutputArea &area) {
});
// Perform [composite/svideo] -> RGB conversion.
composition_buffer_.bind_texture();
if(is_composite(existing_modals_->display_type)) {
separation_buffer_.bind_framebuffer();
separation_shader_.bind();
@@ -514,6 +516,9 @@ void ScanTarget::process_to_rgb(const OutputArea &area) {
if(is_composite(existing_modals_->display_type) || is_svideo(existing_modals_->display_type)) {
demodulation_buffer_.bind_framebuffer();
demodulation_shader_.bind();
if(!separation_buffer_.empty()) {
separation_buffer_.bind_texture();
}
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(num_dirty_zones)); });
}
@@ -559,6 +564,7 @@ void ScanTarget::output_lines(const OutputArea &area) {
const auto new_lines = ::submit(lines_, begin, end, line_buffer_);
// Output new lines.
demodulation_buffer_.bind_texture();
line_output_shader_.bind();
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_lines)); });
@@ -607,6 +613,7 @@ void ScanTarget::output_scans(const OutputArea &area) {
// Output new scans.
scan_output_shader_.bind();
composition_buffer_.bind_texture();
test_gl([&]{ glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, GLsizei(new_scans)); });
scan_begin = scan_end;