OGL: Support stereoscopic XFB blit to screen.

2 files changed, 20 insertions, 15 deletions

diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index a03f8cd61d..2def435a11 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -1270,6 +1270,22 @@ void Renderer::ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaE
 	ClearEFBCache();
 }
 
+void Renderer::BlitScreen(TargetRectangle src, TargetRectangle dst, GLuint src_texture, int src_width, int src_height)
+{
+	if (g_ActiveConfig.iStereoMode == STEREO_SBS || g_ActiveConfig.iStereoMode == STEREO_TAB)
+	{
+		TargetRectangle leftRc, rightRc;
+		ConvertStereoRectangle(dst, leftRc, rightRc);
+
+		m_post_processor->BlitFromTexture(src, leftRc, src_texture, src_width, src_height, 0);
+		m_post_processor->BlitFromTexture(src, rightRc, src_texture, src_width, src_height, 1);
+	}
+	else
+	{
+		m_post_processor->BlitFromTexture(src, dst, src_texture, src_width, src_height);
+	}
+}
+
 void Renderer::ReinterpretPixelData(unsigned int convtype)
 {
 	if (convtype == 0 || convtype == 2)
@@ -1473,8 +1489,7 @@ void Renderer::SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight, co
 
 			sourceRc.right -= fbStride - fbWidth;
 
-			// TODO: Virtual XFB stereoscopic 3D support.
-			m_post_processor->BlitFromTexture(sourceRc, drawRc, xfbSource->texture, xfbSource->texWidth, xfbSource->texHeight, 1);
+			BlitScreen(sourceRc, drawRc, xfbSource->texture, xfbSource->texWidth, xfbSource->texHeight);
 		}
 	}
 	else
@@ -1483,19 +1498,7 @@ void Renderer::SwapImpl(u32 xfbAddr, u32 fbWidth, u32 fbStride, u32 fbHeight, co
 
 		// for msaa mode, we must resolve the efb content to non-msaa
 		GLuint tex = FramebufferManager::ResolveAndGetRenderTarget(rc);
-
-		if (g_ActiveConfig.iStereoMode == STEREO_SBS || g_ActiveConfig.iStereoMode == STEREO_TAB)
-		{
-			TargetRectangle leftRc, rightRc;
-			ConvertStereoRectangle(flipped_trc, leftRc, rightRc);
-
-			m_post_processor->BlitFromTexture(targetRc, leftRc, tex, s_target_width, s_target_height, 0);
-			m_post_processor->BlitFromTexture(targetRc, rightRc, tex, s_target_width, s_target_height, 1);
-		}
-		else
-		{
-			m_post_processor->BlitFromTexture(targetRc, flipped_trc, tex, s_target_width, s_target_height);
-		}
+		BlitScreen(targetRc, flipped_trc, tex, s_target_width, s_target_height);
 	}
 
 	glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
diff --git a/Source/Core/VideoBackends/OGL/Render.h b/Source/Core/VideoBackends/OGL/Render.h
index b536d1cecb..cfa01a2e6f 100644
--- a/Source/Core/VideoBackends/OGL/Render.h
+++ b/Source/Core/VideoBackends/OGL/Render.h
@@ -91,6 +91,8 @@ public:
 
 private:
 	void UpdateEFBCache(EFBAccessType type, u32 cacheRectIdx, const EFBRectangle& efbPixelRc, const TargetRectangle& targetPixelRc, const u32* data);
+
+	void BlitScreen(TargetRectangle src, TargetRectangle dst, GLuint src_texture, int src_width, int src_height);
 };
 
 }