commit eb5ea07749388ec9cd4494223080323512f0451c
author Minmin Gong <mgong@microsoft.com> Fri Sep 11 11:21:00 2015 -0700
committer Geoff Lang <geofflang@chromium.org> Wed Sep 23 17:18:36 2015 +0000
tree 33919374d2860175cbb3622d19694168e254e600
parent 7a04151879dd97275d954e7f3f2473776deae136

Implements GL_EXT_unpack_subimage and GL_NV_pack_subimage.
Pack/unpack subimages is core features of GLES3. Those 2 extensions expose
them to GLES2.

BUG=angleproject:512

Change-Id: I6834cf5d4a91bc3430c60dcec29c449826fd6d93
Reviewed-on: https://chromium-review.googlesource.com/299790
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Minmin Gong <mgong@microsoft.com>

src/libANGLE/Context.cpp

diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
index e5f331d..7aeb1e1 100644
--- a/src/libANGLE/Context.cpp
+++ b/src/libANGLE/Context.cpp
@@ -1094,6 +1094,26 @@
             }
         }
         return true;
+        case GL_PACK_ROW_LENGTH:
+        case GL_PACK_SKIP_ROWS:
+        case GL_PACK_SKIP_PIXELS:
+            if (!mExtensions.packSubimage)
+            {
+                return false;
+            }
+            *type      = GL_INT;
+            *numParams = 1;
+            return true;
+        case GL_UNPACK_ROW_LENGTH:
+        case GL_UNPACK_SKIP_ROWS:
+        case GL_UNPACK_SKIP_PIXELS:
+            if (!mExtensions.unpackSubimage)
+            {
+                return false;
+            }
+            *type      = GL_INT;
+            *numParams = 1;
+            return true;
       case GL_MAX_VIEWPORT_DIMS:
         {
             *type = GL_INT;
@@ -1204,6 +1224,12 @@
       case GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS:
       case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS:
       case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS:
+      case GL_PACK_ROW_LENGTH:
+      case GL_PACK_SKIP_ROWS:
+      case GL_PACK_SKIP_PIXELS:
+      case GL_UNPACK_ROW_LENGTH:
+      case GL_UNPACK_SKIP_ROWS:
+      case GL_UNPACK_SKIP_PIXELS:
         {
             *type = GL_INT;
             *numParams = 1;