Update GL state tracking on VertexArrayGL::streamAttributes

When emulating streamed attributes, the internal state is not being correctly updated in the GL backend. This fixes this issue for the particular edge-case. Bug: angleproject:3933 Change-Id: I4b785d76ccfc475d80e431977e4d482c7f2d1389 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1817103Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

Update GL state tracking on VertexArrayGL::streamAttributes
1057aaef · Jonah Ryan-Davis · Commit Bot · b540da89 · 1057aaef
Commit 1057aaef authored Sep 23, 2019 by Jonah Ryan-Davis Committed by Commit Bot Sep 24, 2019
Hide whitespace changes
Inline Side-by-side

Showing with 10 additions and 0 deletions

VertexArrayGL.cpp src/libANGLE/renderer/gl/VertexArrayGL.cpp +10 -0

No files found.
--- a/src/libANGLE/renderer/gl/VertexArrayGL.cpp
+++ b/src/libANGLE/renderer/gl/VertexArrayGL.cpp
@@ -368,6 +368,16 @@ angle::Result VertexArrayGL::streamAttributes(const gl::Context *context,
                                    static_cast<GLsizei>(destStride),
                                    static_cast<GLintptr>(vertexStartOffset));

+            // Update the state to track the streamed attribute
+            mAppliedAttributes[idx].format = attrib.format;
+
+            mAppliedAttributes[idx].relativeOffset = 0;
+            mAppliedAttributes[idx].bindingIndex   = static_cast<GLuint>(idx);
+
+            mAppliedBindings[idx].setStride(static_cast<GLsizei>(destStride));
+            mAppliedBindings[idx].setOffset(static_cast<GLintptr>(vertexStartOffset));
+            mAppliedBindings[idx].setBuffer(context, nullptr);
+
            curBufferOffset += destStride * streamedVertexCount;
        }