commit 2b97681b9ac01909bc60f5c6caecef3599b2acf9
author Jamie Madill <jmadill@chromium.org> Mon Aug 25 15:47:49 2014 -0400
committer Jamie Madill <jmadill@chromium.org> Tue Aug 26 13:25:11 2014 +0000
tree 2b38b91945dea6f337332c726c49b37b0c193f76
parent 1fecbc85ad7a0f52b4db0763c7f6c481a69eadf7

Extract validation from VertexDataManager.cpp to the API.

We can check for buffer overflow at draw validation time, before
processing any vertex data.

BUG=angle:571

Change-Id: I4f49629b98c17ca28e25baed74cad4ae5341b20f
Reviewed-on: https://chromium-review.googlesource.com/210647
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>

src/libGLESv2/Context.cpp

diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index 10060b8..fc1ca08 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -1761,7 +1761,9 @@
     }
 }
 
-void Context::drawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLsizei instances)
+void Context::drawElements(GLenum mode, GLsizei count, GLenum type,
+                           const GLvoid *indices, GLsizei instances,
+                           const rx::RangeUI &indexRange)
 {
     ASSERT(mState.getCurrentProgramId() != 0);
 
@@ -1795,6 +1797,7 @@
 
     VertexArray *vao = mState.getVertexArray();
     rx::TranslatedIndexData indexInfo;
+    indexInfo.indexRange = indexRange;
     GLenum err = mRenderer->applyIndexBuffer(indices, vao->getElementArrayBuffer(), count, mode, type, &indexInfo);
     if (err != GL_NO_ERROR)
     {