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Fixed wrong starting frame for wipe animation

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Menu graphics appeared in starting frame with hardware renderer only
Software renderer was not affected as it reads pixels from front buffer instead of back buffer like OpenGL counterpart did
See http://forum.drdteam.org/viewtopic.php?t=6857
This commit is contained in:
alexey.lysiuk 2016-03-15 11:30:34 +02:00 committed by Christoph Oelckers
parent f4f489b33d
commit 1f64d7ee22
1 changed files with 4 additions and 0 deletions
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4
src/gl/system/gl_wipe.cpp
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@ -153,7 +153,11 @@ bool OpenGLFrameBuffer::WipeStartScreen(int type)
GLRenderer->mSamplerManager->Bind(1, CLAMP_NONE);
glFinish();
wipestartscreen->Bind(0, false, false);
GLint readbuffer = 0;
glGetIntegerv(GL_READ_BUFFER, &readbuffer);
glReadBuffer(GL_FRONT);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, Width, Height);
glReadBuffer(readbuffer);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);