From d5412d30e1c909956ef2a1bd24bda27ab71fc6e5 Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Tue, 27 Sep 2016 21:51:12 +0700
Subject: [PATCH] Add support for software depth render to
 OGLRender::drawDMATriangles

---
 src/OpenGL.cpp         |  9 +++++++++
 src/SoftwareRender.cpp | 13 ++++++++++---
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/OpenGL.cpp b/src/OpenGL.cpp
index bc9374f4..d666375a 100644
--- a/src/OpenGL.cpp
+++ b/src/OpenGL.cpp
@@ -1327,6 +1327,15 @@ void OGLRender::drawDMATriangles(u32 _numVtx)
 		return;
 	_prepareDrawTriangle(true);
 	glDrawArrays(GL_TRIANGLES, 0, _numVtx);
+
+	if (config.frameBufferEmulation.enable != 0 &&
+		config.frameBufferEmulation.copyDepthToRDRAM == Config::cdSoftwareRender &&
+		gDP.otherMode.depthUpdate != 0) {
+		renderTriangles(triangles.dmaVertices.data(), nullptr, _numVtx);
+		FrameBuffer * pCurrentDepthBuffer = frameBufferList().findBuffer(gDP.depthImageAddress);
+		if (pCurrentDepthBuffer != nullptr)
+			pCurrentDepthBuffer->m_cleared = false;
+	}
 }
 
 void OGLRender::drawTriangles()
diff --git a/src/SoftwareRender.cpp b/src/SoftwareRender.cpp
index 7715c20e..555b4365 100644
--- a/src/SoftwareRender.cpp
+++ b/src/SoftwareRender.cpp
@@ -169,9 +169,16 @@ void renderTriangles(const SPVertex * _pVertices, const GLubyte * _pElements, u3
 	SPVertex vdata[6];
 	for (u32 i = 0; i < _numElements; i += 3) {
 		u32 orbits = 0;
-		for (u32 j = 0; j < 3; ++j) {
-			vsrc[j] = &_pVertices[_pElements[i + j]];
-			orbits |= vsrc[j]->clip;
+		if (_pElements != nullptr) {
+			for (u32 j = 0; j < 3; ++j) {
+				vsrc[j] = &_pVertices[_pElements[i + j]];
+				orbits |= vsrc[j]->clip;
+			}
+		} else {
+			for (u32 j = 0; j < 3; ++j) {
+				vsrc[j] = &_pVertices[i + j];
+				orbits |= vsrc[j]->clip;
+			}
 		}
 		vsrc[3] = vsrc[0];