commit 7310da33bc7a6fcd9c5cacf0d28db7b3d424c757
author Yizhou Jiang <yizhou.jiang@intel.com> Mon Nov 05 14:40:01 2018 +0800
committer Commit Bot <commit-bot@chromium.org> Thu Nov 29 03:09:05 2018 +0000
tree c6c63e6e5aafbb6701af903fac9d967c73e755b0
parent 2c0d6a9404cdede73b257d91347eaef0449350ed

Implement GetMultismaplefvANGLE and SampleMaskiANGLE of texture multisample extension

This patch adds GetMultismaplefvANGLE and SampleMaskiANGLE api.

TEST=TextureMultisampleTest.CheckSamplePositions*
TEST=NegativeTextureMultisampleTest.Negtive*

BUG=angleproject:2275

Change-Id: Ib1e8b856059229bbe88328a28cf2a892f4673214
Reviewed-on: https://chromium-review.googlesource.com/c/1319252
Commit-Queue: Yizhou Jiang <yizhou.jiang@intel.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/validationES.cpp

diff --git a/src/libANGLE/validationES.cpp b/src/libANGLE/validationES.cpp
index b5dc8d8..3561600 100644
--- a/src/libANGLE/validationES.cpp
+++ b/src/libANGLE/validationES.cpp
@@ -6741,4 +6741,35 @@
     }
     return true;
 }
+
+bool ValidateGetMultisamplefvBase(Context *context, GLenum pname, GLuint index, GLfloat *val)
+{
+    if (pname != GL_SAMPLE_POSITION)
+    {
+        context->validationError(GL_INVALID_ENUM, kInvalidPname);
+        return false;
+    }
+
+    Framebuffer *framebuffer = context->getGLState().getDrawFramebuffer();
+    GLint samples            = framebuffer->getSamples(context);
+
+    if (index >= static_cast<GLuint>(samples))
+    {
+        context->validationError(GL_INVALID_VALUE, kIndexExceedsSamples);
+        return false;
+    }
+
+    return true;
+}
+
+bool ValidateSampleMaskiBase(Context *context, GLuint maskNumber, GLbitfield mask)
+{
+    if (maskNumber >= context->getCaps().maxSampleMaskWords)
+    {
+        context->validationError(GL_INVALID_VALUE, kInvalidSampleMaskNumber);
+        return false;
+    }
+
+    return true;
+}
 }  // namespace gl