Support RGB32F and RGBA32F for CopyTextureCHROMIUM in ES2 with related extensions

gpu/command_buffer/tests/gl_copy_texture_CHROMIUM_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef GL_GLEXT_PROTOTYPES
 #define GL_GLEXT_PROTOTYPES
 #endif
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
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       }
 
       EXPECT_TRUE(GL_NO_ERROR == glGetError()) << "src_index:" << src_index
                                                << " dest_index:" << dest_index;
       glDeleteTextures(2, textures_);
       glDeleteFramebuffers(1, &framebuffer_id_);
     }
   }
 }
 
+TEST_P(GLCopyTextureCHROMIUMTest, InternalFormatRGBFloat) {
+  if (!GLTestHelper::HasExtension("GL_CHROMIUM_color_buffer_float_rgb")) {
+    LOG(INFO)
+        << "GL_CHROMIUM_color_buffer_float_rgb not supported. Skipping test...";
+    return;
+  }
+  // TODO(qiankun.miao@intel.com): since RunCopyTexture requires dest texture to
+  // be texture complete, skip this test if float texture is not color
+  // filterable. We should remove this limitation when we find a way doesn't
+  // require dest texture to be texture complete in RunCopyTexture.
+  if (!gl_.decoder()
+           ->GetFeatureInfo()
+           ->feature_flags()
+           .enable_texture_float_linear) {
+    LOG(INFO) << "RGB32F texture is not filterable. Skipping test...";
+    return;
+  }
+  CopyType copy_type = GetParam();
+  FormatType src_format_type = {GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE};
+  FormatType dest_format_type = {GL_RGB32F, GL_RGB, GL_FLOAT};
+
+  RunCopyTexture(GL_TEXTURE_2D, copy_type, src_format_type, 0, dest_format_type,
+                 0, false);
+}
+
+TEST_P(GLCopyTextureCHROMIUMTest, InternalFormatRGBAFloat) {
+  if (!GLTestHelper::HasExtension("GL_CHROMIUM_color_buffer_float_rgba")) {
+    LOG(INFO) << "GL_CHROMIUM_color_buffer_float_rgba not supported. Skipping "
+                 "test...";
+    return;
+  }
+  // TODO(qiankun.miao@intel.com): since RunCopyTexture requires dest texture to
+  // be texture complete, skip this test if float texture is not color
+  // filterable. We should remove this limitation when we find a way doesn't
+  // require dest texture to be texture complete in RunCopyTexture.
+  if (!gl_.decoder()
+           ->GetFeatureInfo()
+           ->feature_flags()
+           .enable_texture_float_linear) {
+    LOG(INFO) << "RGBA32F texture is not filterable. Skipping test...";
+    return;
+  }
+  CopyType copy_type = GetParam();
+  FormatType src_format_type = {GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE};
+  FormatType dest_format_type = {GL_RGBA32F, GL_RGBA, GL_FLOAT};
+
+  RunCopyTexture(GL_TEXTURE_2D, copy_type, src_format_type, 0, dest_format_type,
+                 0, false);
+}
+
 TEST_P(GLCopyTextureCHROMIUMTest, InternalFormatNotSupported) {
   CopyType copy_type = GetParam();
   CreateAndBindDestinationTextureAndFBO(GL_TEXTURE_2D);
   glBindTexture(GL_TEXTURE_2D, textures_[0]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                nullptr);
   EXPECT_TRUE(GL_NO_ERROR == glGetError());
 
   // Check unsupported format reports error.
   GLint unsupported_dest_formats[] = {GL_RED, GL_RG};
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         }
       }
 
       glDeleteTextures(2, textures_);
       glDeleteFramebuffers(1, &framebuffer_id_);
     }
   }
 }
 
 }  // namespace gpu