commit db3422764a9bdebb924552169b3df8d42c4b463f
author Jiawei Shao <jiawei.shao@intel.com> Wed Sep 27 10:21:45 2017 +0800
committer Commit Bot <commit-bot@chromium.org> Thu Sep 28 16:39:41 2017 +0000
tree d53d7fac87845dd53577f328056d63fa4cf8668e
parent 49bb7e131c9b329cdd6c3c60dfb9c0e66f5ec92f

ES31: Implement glSampleMaski on OpenGL

This patch intends to implement glSampleMaski on OpenGL
backends.
Refers to: https://chromium-review.googlesource.com/c/487603

BUG=angleproject:1592
TEST=dEQP-GLES31.functional.state_query.*.sample_mask*
TEST=dEQP-GLES31.functional.texture.multisample.*.sample_mask*

Change-Id: If5ddd6ab57259593919a482be80fbdbe29f6f54d
Reviewed-on: https://chromium-review.googlesource.com/573727
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

src/libANGLE/validationES31.cpp

diff --git a/src/libANGLE/validationES31.cpp b/src/libANGLE/validationES31.cpp
index 40f59e7..63f5c59 100644
--- a/src/libANGLE/validationES31.cpp
+++ b/src/libANGLE/validationES31.cpp
@@ -1312,4 +1312,21 @@
     return true;
 }
 
+bool ValidateSampleMaski(Context *context, GLuint maskNumber)
+{
+    if (context->getClientVersion() < ES_3_1)
+    {
+        ANGLE_VALIDATION_ERR(context, InvalidOperation(), ES31Required);
+        return false;
+    }
+
+    if (maskNumber >= context->getCaps().maxSampleMaskWords)
+    {
+        ANGLE_VALIDATION_ERR(context, InvalidValue(), InvalidSampleMaskNumber);
+        return false;
+    }
+
+    return true;
+}
+
 }  // namespace gl