From b52fa02227d8e7413d174bc5b3808f795d0215f0 Mon Sep 17 00:00:00 2001
From: Brian Salomon <bsalomon@google.com>
Date: Wed, 7 Jun 2017 09:42:52 -0400
Subject: Limit Adreno 4xx stencil clear workaround to older drivers

Bug: skia:5587
Change-Id: I00f377c06228deb9053b1cf7d9f413e0bf2fb490
Reviewed-on: https://skia-review.googlesource.com/18936
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
---
 src/gpu/gl/GrGLCaps.cpp |  6 +++++-
 src/gpu/gl/GrGLUtil.cpp | 10 ++++++++++
 src/gpu/gl/GrGLUtil.h   |  1 +
 3 files changed, 16 insertions(+), 1 deletion(-)

(limited to 'src/gpu')

diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 44d25299ae..0f3d7add82 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -512,7 +512,11 @@ void GrGLCaps::init(const GrContextOptions& contextOptions,
 
     if (kAdreno4xx_GrGLRenderer == ctxInfo.renderer()) {
         fUseDrawInsteadOfPartialRenderTargetWrite = true;
-        fUseDrawToClearStencilClip = true;
+        // This is known to be fixed sometime between driver 145.0 and 219.0
+        if (ctxInfo.driver() == kQualcomm_GrGLDriver &&
+            ctxInfo.driverVersion() <= GR_GL_DRIVER_VER(219, 0)) {
+            fUseDrawToClearStencilClip = true;
+        }
     }
 
     // Texture uploads sometimes seem to be ignored to textures bound to FBOS on Tegra3.
diff --git a/src/gpu/gl/GrGLUtil.cpp b/src/gpu/gl/GrGLUtil.cpp
index cf4615ad86..6da7c20aec 100644
--- a/src/gpu/gl/GrGLUtil.cpp
+++ b/src/gpu/gl/GrGLUtil.cpp
@@ -173,6 +173,16 @@ void GrGLGetDriverInfo(GrGLStandard standard,
         // We presume we're on the Intel driver since it hasn't identified itself as Mesa.
         *outDriver = kIntel_GrGLDriver;
     }
+
+    if (kQualcomm_GrGLVendor == vendor) {
+        *outDriver = kQualcomm_GrGLDriver;
+        int n = sscanf(versionString, "OpenGL ES %d.%d V@%d.%d", &major, &minor, &driverMajor,
+                       &driverMinor);
+        if (4 == n) {
+            *outVersion = GR_GL_DRIVER_VER(driverMajor, driverMinor);
+        }
+        return;
+    }
 }
 
 GrGLVersion GrGLGetVersionFromString(const char* versionString) {
diff --git a/src/gpu/gl/GrGLUtil.h b/src/gpu/gl/GrGLUtil.h
index fc2594a3a0..b798385cf6 100644
--- a/src/gpu/gl/GrGLUtil.h
+++ b/src/gpu/gl/GrGLUtil.h
@@ -68,6 +68,7 @@ enum GrGLDriver {
     kNVIDIA_GrGLDriver,
     kIntel_GrGLDriver,
     kANGLE_GrGLDriver,
+    kQualcomm_GrGLDriver,
     kUnknown_GrGLDriver
 };
 
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