From a008aa9c85bc136daefc4e056d88008cc4f55781 Mon Sep 17 00:00:00 2001
From: Leon Scroggins III <scroggo@google.com>
Date: Thu, 10 Mar 2022 16:25:30 -0500
Subject: Support ALPHA_8 + HARDWARE

Bug: 141480329
Test: I9f64b966092942964073c2dbe9b091e618f7df95
Change-Id: Ibfec753b1f82b0ff97341a742b2933e2f18b234a
---
 libs/hwui/HardwareBitmapUploader.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'libs/hwui/HardwareBitmapUploader.cpp')

diff --git a/libs/hwui/HardwareBitmapUploader.cpp b/libs/hwui/HardwareBitmapUploader.cpp
index dd272cd5ff7d..c24cabb287de 100644
--- a/libs/hwui/HardwareBitmapUploader.cpp
+++ b/libs/hwui/HardwareBitmapUploader.cpp
@@ -310,6 +310,11 @@ bool HardwareBitmapUploader::has1010102Support() {
     return has101012Support;
 }
 
+bool HardwareBitmapUploader::hasAlpha8Support() {
+    static bool hasAlpha8Support = checkSupport(AHARDWAREBUFFER_FORMAT_R8_UNORM);
+    return hasAlpha8Support;
+}
+
 static FormatInfo determineFormat(const SkBitmap& skBitmap, bool usingGL) {
     FormatInfo formatInfo;
     switch (skBitmap.info().colorType()) {
@@ -363,6 +368,13 @@ static FormatInfo determineFormat(const SkBitmap& skBitmap, bool usingGL) {
             }
             formatInfo.format = GL_RGBA;
             break;
+        case kAlpha_8_SkColorType:
+            formatInfo.isSupported = HardwareBitmapUploader::hasAlpha8Support();
+            formatInfo.bufferFormat = AHARDWAREBUFFER_FORMAT_R8_UNORM;
+            formatInfo.format = GL_R8;
+            formatInfo.type = GL_UNSIGNED_BYTE;
+            formatInfo.vkFormat = VK_FORMAT_R8_UNORM;
+            break;
         default:
             ALOGW("unable to create hardware bitmap of colortype: %d", skBitmap.info().colorType());
             formatInfo.valid = false;
-- 
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