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Don't present backbuffer if it's not affected by rendering.

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This commit is contained in:
Branimir Karadžić
2016-11-13 20:59:41 -08:00
parent ff669aceab
commit e86aee5f2e
3 changed files with 53 additions and 26 deletions
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17
src/renderer_gl.cpp
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@@ -2217,6 +2217,8 @@ namespace bgfx { namespace gl
ovrPostReset();
m_needPresent = false;
BGFX_GPU_PROFILER_BIND();
}
@@ -2285,11 +2287,16 @@ namespace bgfx { namespace gl
}
}
m_ovr.flip();
m_ovr.swap(_hmd);
if (m_needPresent)
{
m_ovr.flip();
m_ovr.swap(_hmd);
// need to swap GL render context even if OVR is enabled to get the mirror texture in the output
m_glctx.swap();
// need to swap GL render context even if OVR is enabled to get
// the mirror texture in the output
m_glctx.swap();
m_needPresent = false;
}
}
}
@@ -2745,6 +2752,7 @@ namespace bgfx { namespace gl
if (!isValid(_fbh) )
{
m_needPresent |= true;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
if (m_srgbWriteControlSupport)
@@ -3457,6 +3465,7 @@ namespace bgfx { namespace gl
GLuint m_msaaBackBufferFbo;
GLuint m_msaaBackBufferRbos[2];
GlContext m_glctx;
bool m_needPresent;
const char* m_vendor;
const char* m_renderer;