commit 8af24c5c4afc459c6ada259da25e57c9ec33a072
author Nicolas Capens <capn@google.com> Mon Dec 11 14:45:01 2017 -0500
committer Nicolas Capens <nicolascapens@google.com> Thu Dec 14 15:39:56 2017 +0000
tree b692ff4fda57f6fa47712a24b5f5f5f09cfc20c4
parent bfa23b3f4de49586d2bd25efb77fa92734bd6f26

Implement render target layers support.

This adds the ability to render to a specific layer of a 2D array
texture.

Change-Id: I3055d62c9964b2729704785efb068b82eef4f9ce
Reviewed-on: https://swiftshader-review.googlesource.com/14668
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

src/Renderer/Renderer.cpp

diff --git a/src/Renderer/Renderer.cpp b/src/Renderer/Renderer.cpp
index 0b95c72..1c92576 100644
--- a/src/Renderer/Renderer.cpp
+++ b/src/Renderer/Renderer.cpp
@@ -606,7 +606,8 @@
 
 					if(draw->renderTarget[index])
 					{
-						data->colorBuffer[index] = (unsigned int*)context->renderTarget[index]->lockInternal(0, 0, 0, LOCK_READWRITE, MANAGED);
+						unsigned int layer = context->renderTargetLayer[index];
+						data->colorBuffer[index] = (unsigned int*)context->renderTarget[index]->lockInternal(0, 0, layer, LOCK_READWRITE, MANAGED);
 						data->colorBuffer[index] += q * ms * context->renderTarget[index]->getSliceB(true);
 						data->colorPitchB[index] = context->renderTarget[index]->getInternalPitchB();
 						data->colorSliceB[index] = context->renderTarget[index]->getInternalSliceB();
@@ -618,7 +619,8 @@
 
 				if(draw->depthBuffer)
 				{
-					data->depthBuffer = (float*)context->depthBuffer->lockInternal(0, 0, 0, LOCK_READWRITE, MANAGED);
+					unsigned int layer = context->depthBufferLayer;
+					data->depthBuffer = (float*)context->depthBuffer->lockInternal(0, 0, layer, LOCK_READWRITE, MANAGED);
 					data->depthBuffer += q * ms * context->depthBuffer->getSliceB(true);
 					data->depthPitchB = context->depthBuffer->getInternalPitchB();
 					data->depthSliceB = context->depthBuffer->getInternalSliceB();
@@ -626,7 +628,8 @@
 
 				if(draw->stencilBuffer)
 				{
-					data->stencilBuffer = (unsigned char*)context->stencilBuffer->lockStencil(0, 0, 0, MANAGED);
+					unsigned int layer = context->stencilBufferLayer;
+					data->stencilBuffer = (unsigned char*)context->stencilBuffer->lockStencil(0, 0, layer, MANAGED);
 					data->stencilBuffer += q * ms * context->stencilBuffer->getSliceB(true);
 					data->stencilPitchB = context->stencilBuffer->getStencilPitchB();
 					data->stencilSliceB = context->stencilBuffer->getStencilSliceB();