Fix linestrip usage for highlight box

renderdoc/data/hlsl/debugcbuffers.h

@@ -63,7 +63,8 @@ cbuffer DebugVertexCBuffer REG(b0)
 	row_major float4x4 ModelViewProj;
 	
 	float Scale;
-	float3 dummy1;
+	uint LineStrip;
+	float2 dummy1;
 };
 
 cbuffer DebugGeometryCBuffer REG(b0)

renderdoc/data/hlsl/debugdisplay.hlsl

@@ -37,6 +37,18 @@ v2f RENDERDOC_DebugVS(uint vertID : SV_VertexID)
 
 	float2 pos = positions[vertID];
 
+	if(LineStrip)
+	{
+		float2 strippositions[] = {
+			float2(0.0f,  0.0f),
+			float2(1.0f,  0.0f),
+			float2(1.0f, -1.0f),
+			float2(0.0f, -1.0f),
+		};
+
+		pos = strippositions[vertID];
+	}
+
 	OUT.pos = float4(Position.xy + pos.xy*TextureResolution.xy*Scale*ScreenAspect.xy, 0, 1)-float4(1.0,-1.0,0,0);
 	OUT.tex.xy = float2(pos.x, -pos.y);
 	return OUT;

renderdoc/driver/d3d11/d3d11_debug.cpp

@@ -3273,6 +3273,8 @@ bool D3D11DebugManager::RenderTexture(TextureDisplay cfg, bool blendAlpha)
 	vertexData.TextureResolution.x = 1.0f/vertexData.ScreenAspect.x;
 	vertexData.TextureResolution.y = 1.0f;
 
+	vertexData.LineStrip = 0;
+
 	if(cfg.rangemax <= cfg.rangemin) cfg.rangemax += 0.00001f;
 
 	pixelData.Channels.x = cfg.Red ? 1.0f : 0.0f;
@@ -3592,6 +3594,8 @@ void D3D11DebugManager::RenderHighlightBox(float w, float h, float scale)
 	vertCBuffer.TextureResolution.x = xdim;
 	vertCBuffer.TextureResolution.y = ydim;
 
+	vertCBuffer.LineStrip = 1;
+
 	vconst = MakeCBuffer((float *)&vertCBuffer, sizeof(vertCBuffer));
 
 	m_pImmediateContext->HSSetShader(NULL, NULL, 0);
@@ -3642,6 +3646,8 @@ void D3D11DebugManager::RenderCheckerboard(Vec3f light, Vec3f dark)
 
 	vertexData.TextureResolution.x = 1.0f;
 	vertexData.TextureResolution.y = 1.0f;
+
+	vertexData.LineStrip = 0;
 	
 	FillCBuffer(m_DebugRender.GenericVSCBuffer, (float *)&vertexData, sizeof(DebugVertexCBuffer));
 
@@ -4460,6 +4466,8 @@ void D3D11DebugManager::RenderMesh(uint32_t frameID, const vector<uint32_t> &eve
 {
 	DebugVertexCBuffer vertexData;
 
+	vertexData.LineStrip = 0;
+
 	D3D11PipelineState pipeState = m_WrappedDevice->GetReplay()->GetD3D11PipelineState();
 	D3D11RenderState *curRS = m_WrappedDevice->GetImmediateContext()->GetCurrentPipelineState();