Always disable blending for 32bit float formats

GLES32 doesn't support blending 32bit float formats.

Change-Id: I1bfc5656f741bcb80c01d0f8620dbf0441891c0a

diff --git a/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp b/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
index a9948f3..a8f144c 100644 (file)
--- a/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
+++ b/modules/gles31/functional/es31fDrawBuffersIndexedTests.cpp
@@ -1357,6 +1357,32 @@ void genRandomTest (de::Random& rng, BlendState& preCommon, BlendState& postComm
                BlendState                      blendState;
 
                genRandomBlendState(rng, blendState);
+
+               // 32bit float formats don't support blending in GLES32
+               if (format.type == tcu::TextureFormat::FLOAT)
+               {
+                       // If format is 32bit float post common can't enable blending
+                       if (postCommon.enableBlend && *postCommon.enableBlend)
+                       {
+                               // Either don't set enable blend or disable blending
+                               if (rng.getBool())
+                                       postCommon.enableBlend = tcu::nothing<bool>();
+                               else
+                                       postCommon.enableBlend = tcu::just(false);
+                       }
+
+                       // If post common doesn't disable blending, per attachment state or
+                       // pre common must.
+                       if (!postCommon.enableBlend)
+                       {
+                               // If pre common enables blend per attachment must disable it
+                               // If per attachment state changes blend state it must disable it
+                               if ((preCommon.enableBlend && *preCommon.enableBlend)
+                                       || blendState.enableBlend)
+                                       blendState.enableBlend = tcu::just(false);
+                       }
+               }
+
                drawBuffers.push_back(DrawBufferInfo(render, size, blendState, format));
        }
 }