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Resolves out-of-bounds initial condition whenever this loop began with start_line = 2047.

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This, I believe, was the remaining cause of screen flashes.
This commit is contained in:
Thomas Harte 2019-02-24 19:50:19 -05:00
parent a6e61ef83b
commit 7bb90c78d9
1 changed files with 1 additions and 1 deletions
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2
Outputs/OpenGL/ScanTarget.cpp
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@ -576,7 +576,7 @@ void ScanTarget::draw(bool synchronous, int output_width, int output_height) {
// Divide spans by which frame they're in. // Divide spans by which frame they're in.
uint16_t start_line = read_pointers.line; uint16_t start_line = read_pointers.line;
while(new_lines) { while(new_lines) {
uint16_t end_line = start_line+1; uint16_t end_line = (start_line + 1) % LineBufferHeight;
// Find the limit of spans to draw in this cycle. // Find the limit of spans to draw in this cycle.
size_t lines = 1; size_t lines = 1;