kc3-lang/angle/tests/compiler_tests/NV_draw_buffers_test.cpp

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• Author : Olli Etuaho
  Date : 2014-09-26 12:01:17
  Hash : e61209af
  Message : Add option to support EXT_draw_buffers with NV_draw_buffers After this patch, it is possible to set a flag to change EXT_draw_buffers extension directives to NV_draw_buffers in ESSL. This enables users of ANGLE to emulate EXT_draw_buffers by using NV_draw_buffers in combination with GLES3.0. Change-Id: I5dacdbd6cd0d0362424ea3791557342c42efd4bd Reviewed-on: https://chromium-review.googlesource.com/219941 Reviewed-by: Olli Etuaho <oetuaho@nvidia.com> Tested-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• tests/compiler_tests/NV_draw_buffers_test.cpp

• //
  // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // NV_draw_buffers_test.cpp:
  //   Test for NV_draw_buffers setting
  //
  
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "GLSLANG/ShaderLang.h"
  #include "compiler/translator/TranslatorESSL.h"
  
  class NVDrawBuffersTest : public testing::Test
  {
    public:
      NVDrawBuffersTest() {}
  
    protected:
      virtual void SetUp()
      {
          ShBuiltInResources resources;
          ShInitBuiltInResources(&resources);
          resources.MaxDrawBuffers = 8;
          resources.EXT_draw_buffers = 1;
          resources.NV_draw_buffers = 1;
  
          mTranslator = new TranslatorESSL(GL_FRAGMENT_SHADER, SH_GLES2_SPEC);
          ASSERT_TRUE(mTranslator->Init(resources));
      }
  
      virtual void TearDown()
      {
          delete mTranslator;
      }
  
      TranslatorESSL *mTranslator;
  };
  
  TEST_F(NVDrawBuffersTest, NVDrawBuffers)
  {
      const std::string &shaderString =
          "#extension GL_EXT_draw_buffers : require\n"
          "precision mediump float;\n"
          "void main() {\n"
          "   gl_FragData[0] = vec4(1.0);\n"
          "   gl_FragData[1] = vec4(0.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_OBJECT_CODE));
  
      TInfoSink& infoSink = mTranslator->getInfoSink();
      std::string objCode(infoSink.obj.c_str());
      size_t nv_draw_buffers_ind = objCode.find("GL_NV_draw_buffers");
      EXPECT_NE(std::string::npos, nv_draw_buffers_ind);
      size_t ext_draw_buffers_ind = objCode.find("GL_EXT_draw_buffers");
      EXPECT_EQ(std::string::npos, ext_draw_buffers_ind);
  };