commit 2de7771740ee08fcaff638ec6b2e460bb72fff04
author John Reck <jreck@google.com> Wed Jan 20 11:09:53 2016 -0800
committer John Reck <jreck@google.com> Wed Jan 20 13:16:24 2016 -0800
tree f175efd66cc7f81481bb61f398c3ef2041f72919
parent 8020313d05f22dc1f8a7a182e6da134db17761ec

Normalize GL_UNPACK_ALIGNMENT

Several places were setting GL_UNPACK_ALIGNMENT
unneccessarily, whereas other places were assuming an
unpack alignment of 1. Since we never actually
do explicit row-alignment, set GL_UNPACK_ALIGNMENT
to 1 at context creation time and never change it

Bug: 26584230

Also turns on aggressive glGetError checking to
better catch potential problem zones

Change-Id: I190c8f0f0494a7f046d5ed769405c75d363be59a

libs/hwui/renderstate/TextureState.cpp

diff --git a/libs/hwui/renderstate/TextureState.cpp b/libs/hwui/renderstate/TextureState.cpp
index 26ebdee..78b8eda 100644
--- a/libs/hwui/renderstate/TextureState.cpp
+++ b/libs/hwui/renderstate/TextureState.cpp
@@ -43,6 +43,7 @@
     glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
     LOG_ALWAYS_FATAL_IF(maxTextureUnits < kTextureUnitsCount,
             "At least %d texture units are required!", kTextureUnitsCount);
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 }
 
 void TextureState::activateTexture(GLuint textureUnit) {