GpuImageDecodeCache can support both unorm16 or float16

The decoder can choose either if both are available.

Bug: skia:10632
Change-Id: Ia089845f7b16354fe20d34762ee41aa24c0a5f3f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2405440
Commit-Queue: Khushal <khushalsagar@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806400}

cc/tiles/gpu_image_decode_cache.cc

@@ -992,7 +992,8 @@ GpuImageDecodeCache::GpuImageDecodeCache(
     if (caps.texture_norm16) {
       yuva_supported_data_types_.enableDataType(
           SkYUVAPixmapInfo::DataType::kUnorm16, 1);
-    } else if (caps.texture_half_float_linear) {
+    }
+    if (caps.texture_half_float_linear) {
       yuva_supported_data_types_.enableDataType(
           SkYUVAPixmapInfo::DataType::kFloat16, 1);
     }

cc/tiles/gpu_image_decode_cache_unittest.cc

@@ -3096,7 +3096,7 @@ TEST_P(GpuImageDecodeCacheTest, HighBitDepthYUVDecoding) {
 
   const auto hdr_cs = gfx::ColorSpace::CreateHDR10(/*sdr_white_level=*/200.0f);
 
-  // Ensure that when R16 is supported, it's used and preferred over half-float.
+  // Test that decoding to R16 works when supported.
   {
     auto r16_caps = original_caps;
     r16_caps.texture_norm16 = true;
@@ -3135,7 +3135,7 @@ TEST_P(GpuImageDecodeCacheTest, HighBitDepthYUVDecoding) {
                                  SkYUVAPixmapInfo::DataType::kUnorm16, hdr_cs);
   }
 
-  // Verify that half-float is used when R16 is not available.
+  // Test that decoding to half-float works when supported.
   {
     auto f16_caps = original_caps;
     f16_caps.texture_norm16 = false;
@@ -3192,6 +3192,17 @@ TEST_P(GpuImageDecodeCacheTest, HighBitDepthYUVDecoding) {
 
     yuv_format_ = YUVSubsampling::k444;
     decode_and_check_plane_sizes(no_yuv16_cache.get(), false);
+
+    yuv_data_type_ = SkYUVAPixmapInfo::DataType::kFloat16;
+
+    yuv_format_ = YUVSubsampling::k420;
+    decode_and_check_plane_sizes(no_yuv16_cache.get(), false);
+
+    yuv_format_ = YUVSubsampling::k422;
+    decode_and_check_plane_sizes(no_yuv16_cache.get(), false);
+
+    yuv_format_ = YUVSubsampling::k444;
+    decode_and_check_plane_sizes(no_yuv16_cache.get(), false);
   }
 }