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graphics: Remove glClear before glTexSubImage2D, that is no longer needed

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This commit is contained in:
Hajime Hoshi 2018-02-28 23:33:22 +09:00
parent 9e61d0622e
commit c624359163
1 changed files with 3 additions and 8 deletions
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11
internal/graphics/command.go
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@ -279,14 +279,9 @@ func (c *replacePixelsCommand) Exec(indexOffsetInBytes int) error {
}
f.setAsViewport()
// Filling with non black or white color is required here for glTexSubImage2D.
// Very mysterious but this actually works (Issue #186).
// This is needed even after fixing a shader bug at f537378f2a6a8ef56e1acf1c03034967b77c7b51.
if err := opengl.GetContext().FillFramebuffer(0, 0, 0.5, 1); err != nil {
return err
}
// This is necessary on Android. We can't call glClear just before glTexSubImage2D without
// glFlush. glTexSubImage2D didn't work without this hack at least on Nexus 5x (#211).
// This is necessary on Android.
//
// glTexSubImage2D didn't work without this hack at least on Nexus 5x (#211).
// This also happens when a fillCommand precedes a replacePixelsCommand.
// TODO: Can we have a better way like optimizing commands?
opengl.GetContext().Flush()