commit 8f259a03291fa057dbc73886c6d93b18096afab2
author Robert Phillips <robertphillips@google.com> Fri Dec 20 11:32:27 2019 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Dec 20 21:41:09 2019 +0000
tree 46fe4e5db5b4df16ac1e294ab8ee4249ada865af
parent 28b0c5d4b3bbb6958876b2710cc90297ff981798

Add BC1_RGB8_UNORM support

This is working in the GL and Vulkan back ends. MacOS only supports the RGBA8 variants.
For mobile devices, probably only nVidia GPUs will support this.

Bug: skia:9680
Change-Id: I9d886b72232a031603e93e46059a97a8aa288b3c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/261093
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

src/gpu/gl/GrGLUtil.cpp

diff --git a/src/gpu/gl/GrGLUtil.cpp b/src/gpu/gl/GrGLUtil.cpp
index 0b5755e..be86878 100644
--- a/src/gpu/gl/GrGLUtil.cpp
+++ b/src/gpu/gl/GrGLUtil.cpp
@@ -623,6 +623,7 @@
     switch (format) {
         case GrGLFormat::kCOMPRESSED_RGB8_ETC2:
         case GrGLFormat::kCOMPRESSED_ETC1_RGB8:
+        case GrGLFormat::kCOMPRESSED_RGB8_BC1:
             return true;
 
         case GrGLFormat::kRGBA8:
@@ -654,6 +655,8 @@
         case GrGLFormat::kCOMPRESSED_RGB8_ETC2:
         case GrGLFormat::kCOMPRESSED_ETC1_RGB8:
             return SkImage::CompressionType::kETC1;
+        case GrGLFormat::kCOMPRESSED_RGB8_BC1:
+            return SkImage::CompressionType::kBC1_RGB8_UNORM;
 
         case GrGLFormat::kRGBA8:
         case GrGLFormat::kR8: