kc3-lang/angle/src/tests/gl_tests/WebGLCompressedTextureAvailabilityTest.cpp

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• Hash : a4e00c64
  Author :
  Date : 2022-06-30T00:00:00
  

  Expose EXT_compressed_ETC1_RGB8_sub_texture on Metal and GL
  
  Updated the test to ensure that this extension
  is exposed on Apple GPUs when using Metal.
  
  Updated emulatedEtc1 limitation to hide this extension
  when the main ETC1 extension is hidden.
  
  Real WebGL apps cannot enable this extension because
  it is not exposed in WebIDL.
  
  Removed bogus entry from IsETC1Format and use the helper
  consistently in all validation functions.
  
  Simplified GetNativeCompressedFormat.
  
  Bug: angleproject:7471
  Change-Id: I61321fadad7d962358d0fefecd08aaddaedd2ec2
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3737762
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/tests/gl_tests/WebGLCompressedTextureAvailabilityTest.cpp

• //
  // Copyright 2021 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.
  //
  // WebGLCompressedTextureAvailabilityTest:
  //   Compressed formats must be enabled on platforms that always support them.
  //   Compressed formats must be disabled on platforms that never support them.
  //
  
  #include "test_utils/ANGLETest.h"
  
  using namespace angle;
  
  namespace
  {
  
  class WebGLCompressedTextureAvailabilityTest : public ANGLETest<>
  {
    public:
      WebGLCompressedTextureAvailabilityTest() { setWebGLCompatibilityEnabled(true); }
  };
  
  const char kDXT1[]     = "GL_EXT_texture_compression_dxt1";
  const char kDXT3[]     = "GL_ANGLE_texture_compression_dxt3";
  const char kDXT5[]     = "GL_ANGLE_texture_compression_dxt5";
  const char kS3TCSRGB[] = "GL_EXT_texture_compression_s3tc_srgb";
  const char kRGTC[]     = "GL_EXT_texture_compression_rgtc";
  const char kBPTC[]     = "GL_EXT_texture_compression_bptc";
  
  const char kETC1[]    = "GL_OES_compressed_ETC1_RGB8_texture";
  const char kETC1Sub[] = "GL_EXT_compressed_ETC1_RGB8_sub_texture";  // Not exposed to WebGL apps
  const char kETC2[]    = "GL_ANGLE_compressed_texture_etc";
  
  const char kASTCLDR[] = "GL_KHR_texture_compression_astc_ldr";
  const char kASTCHDR[] = "GL_KHR_texture_compression_astc_hdr";
  
  const char kPVRTC1[] = "GL_IMG_texture_compression_pvrtc";
  
  // Test compressed formats availability
  TEST_P(WebGLCompressedTextureAvailabilityTest, Test)
  {
      if (IsD3D())
      {
          EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT1));
          EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT3));
          EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT5));
          EXPECT_TRUE(EnsureGLExtensionEnabled(kS3TCSRGB));
  
          if (IsD3D9())
          {
              EXPECT_FALSE(EnsureGLExtensionEnabled(kRGTC));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kBPTC));
          }
          else
          {
              EXPECT_TRUE(EnsureGLExtensionEnabled(kRGTC));
          }
  
          EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1));
          EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1Sub));
          EXPECT_FALSE(EnsureGLExtensionEnabled(kETC2));
          EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCLDR));
          EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCHDR));
          EXPECT_FALSE(EnsureGLExtensionEnabled(kPVRTC1));
      }
      else if (IsMetal())
      {
          if (IsOSX())
          {
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT1));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT3));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT5));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kS3TCSRGB));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kRGTC));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kBPTC));
  
              if (IsApple())
              {
                  // M1 or newer
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kETC1));
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kETC1Sub));
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kETC2));
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kASTCLDR));
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kASTCHDR));
                  EXPECT_TRUE(EnsureGLExtensionEnabled(kPVRTC1));
              }
              else
              {
                  // macOS with non-Apple GPU
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1));
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1Sub));
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kETC2));
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCLDR));
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCHDR));
                  EXPECT_FALSE(EnsureGLExtensionEnabled(kPVRTC1));
              }
          }
          else
          {
              // Need proper Catalyst detection to assert formats here.
          }
      }
      else if (IsDesktopOpenGL())
      {
          if (IsOSX())
          {
              // OpenGL version is fixed to 4.1 on macOS, so the supported formats are the same on all
              // devices.
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT1));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT3));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kDXT5));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kS3TCSRGB));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kRGTC));
  
              EXPECT_FALSE(EnsureGLExtensionEnabled(kBPTC));
  
              EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1Sub));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kETC2));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCLDR));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kASTCHDR));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kPVRTC1));
          }
      }
  }
  
  // Regression test for emulated ETC1 being exposed to WebGL contexts.
  //
  // Relies on the fact that ETC1 is a strict subset of ETC2 and the ANGLE-specific ETC2 extension
  // string is exposed only when the hardware support is available. Hardware support for ETC1
  // without ETC2 exists only on native OpenGL ES.
  //
  // Note that non-WebGL contexts are allowed to expose emulated ETC1.
  // https://crbug.com/1048244
  TEST_P(WebGLCompressedTextureAvailabilityTest, EmulatedEtc1Test)
  {
      if (!IsOpenGLES())
      {
          if (EnsureGLExtensionEnabled(kETC2))
          {
              EXPECT_TRUE(EnsureGLExtensionEnabled(kETC1));
              EXPECT_TRUE(EnsureGLExtensionEnabled(kETC1Sub));
          }
          else
          {
              EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1));
              EXPECT_FALSE(EnsureGLExtensionEnabled(kETC1Sub));
          }
      }
  }
  
  ANGLE_INSTANTIATE_TEST_ES2_AND_ES3(WebGLCompressedTextureAvailabilityTest);
  
  }  // namespace
  

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