commit 45c2c8166bbd84a87e29fdd344b39e36e8a28a3f
author kkinnunen <kkinnunen@nvidia.com> Thu Feb 25 02:03:43 2016 -0800
committer Commit bot <commit-bot@chromium.org> Thu Feb 25 02:03:43 2016 -0800
tree 9288929fb75ee43b3676964a6abe2f8cab7b5f6d
parent 3eed7ddb25408cdd1c437e65728bac115aeacbd1

Implement support for using GL ES 3.0 with command buffer

Adds a new 'api': --config gpu(api=commandbuffer3) for dm/nanobench.

BUG=skia:4943
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684413003

Review URL: https://codereview.chromium.org/1684413003

src/gpu/gl/GrGLCaps.cpp

diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 546b0bf..da7907b 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -114,7 +114,7 @@
     } else {
         // Qualcomm Adreno drivers appear to have issues with texture storage.
         fTexStorageSupport = (version >= GR_GL_VER(3,0) &&
-                              kQualcomm_GrGLVendor != ctxInfo.vendor()) ||
+                              kQualcomm_GrGLVendor != ctxInfo.vendor()) &&
                              ctxInfo.hasExtension("GL_EXT_texture_storage");
     }
 
@@ -360,12 +360,12 @@
     } else {
         // Unextended GLES2 doesn't have any buffer mapping.
         fMapBufferFlags = kNone_MapBufferType;
-        if (ctxInfo.hasExtension("GL_CHROMIUM_map_sub")) {
-            fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag;
-            fMapBufferType = kChromium_MapBufferType;
-        } else if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_EXT_map_buffer_range")) {
+        if (version >= GR_GL_VER(3, 0) || ctxInfo.hasExtension("GL_EXT_map_buffer_range")) {
             fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag;
             fMapBufferType = kMapBufferRange_MapBufferType;
+        } else if (ctxInfo.hasExtension("GL_CHROMIUM_map_sub")) {
+            fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag;
+            fMapBufferType = kChromium_MapBufferType;
         } else if (ctxInfo.hasExtension("GL_OES_mapbuffer")) {
             fMapBufferFlags = kCanMap_MapFlag;
             fMapBufferType = kMapBuffer_MapBufferType;
@@ -520,6 +520,17 @@
         fTextureSwizzleSupport = false;
     }
 
+    // TODO: remove after command buffer supports full ES 3.0.
+    if (kGLES_GrGLStandard == standard && version >= GR_GL_VER(3, 0) &&
+        kChromium_GrGLDriver == ctxInfo.driver()) {
+        fTexStorageSupport = false;
+        fSupportsInstancedDraws = false;
+        fTextureSwizzleSupport = false;
+        SkASSERT(ctxInfo.hasExtension("GL_CHROMIUM_map_sub"));
+        fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag;
+        fMapBufferType = kChromium_MapBufferType;
+    }
+
     // Requires fTextureRedSupport, fTextureSwizzleSupport, msaa support, ES compatibility have
     // already been detected.
     this->initConfigTable(ctxInfo, gli, glslCaps);