commit 877ddfc51400030afd2804a23b132ed87a2f8d2f
author Alexis Hetu <sugoi@google.com> Tue Jul 25 17:48:00 2017 -0400
committer Alexis Hétu <sugoi@google.com> Thu Jul 27 12:03:16 2017 +0000
tree cf3e4988b27f89e895788dd07b2bdc9e4c1e0683
parent 0f70a7fa78b484008ac440352979e8bd62e4f0cd

gl_VertexID implementation

This cl implements support for gl_VertexID.

Passes the functional.shaders.builtin_variable.vertex_id test.

Change-Id: I5550e3ecba30e29f1e38ace608d730833a1e9598
Reviewed-on: https://swiftshader-review.googlesource.com/10958
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

src/Shader/VertexShader.cpp

diff --git a/src/Shader/VertexShader.cpp b/src/Shader/VertexShader.cpp
index a98932b..361c76f 100644
--- a/src/Shader/VertexShader.cpp
+++ b/src/Shader/VertexShader.cpp
@@ -27,6 +27,7 @@
 		positionRegister = Pos;
 		pointSizeRegister = Unused;
 		instanceIdDeclared = false;
+		vertexIdDeclared = false;
 		textureSampling = false;
 
 		for(int i = 0; i < MAX_VERTEX_INPUTS; i++)
@@ -48,6 +49,7 @@
 			positionRegister = vs->positionRegister;
 			pointSizeRegister = vs->pointSizeRegister;
 			instanceIdDeclared = vs->instanceIdDeclared;
+			vertexIdDeclared = vs->vertexIdDeclared;
 			usedSamplers = vs->usedSamplers;
 
 			optimize();
@@ -62,6 +64,7 @@
 		positionRegister = Pos;
 		pointSizeRegister = Unused;
 		instanceIdDeclared = false;
+		vertexIdDeclared = false;
 		textureSampling = false;
 
 		for(int i = 0; i < MAX_VERTEX_INPUTS; i++)