diff options
| author | 2015-08-04 16:55:35 +0800 | |
|---|---|---|
| committer | 2015-08-04 19:46:01 +0800 | |
| commit | d538d30e2f498de12a46e2aa3b0814c8d9526226 (patch) | |
| tree | 3ab1643d6affabaf8fc4f3f74343d42ea10cd7f7 /libs/hwui/Extensions.cpp | |
| parent | 40f0efe03df87cf340de089bcb09010a88f8a120 (diff) | |
hwui: add extension to support unpack operations in OpenGL ES 2.0
OpenGL ES 3.0+ lets us specify the row length for unpack operations
such as glTexSubImage2D(). This allows us to upload a sub-rectangle
of a texture. Also, the GL_EXT_unpack_subimage extension can also
support this feature in OpenGL ES 2.0
Change-Id: Id43c2c55c5eaefbace67087c955f0b4324fb2c35
Signed-off-by: xiaozhengdong <xiaozhengdong@xiaomi.com>
Diffstat (limited to 'libs/hwui/Extensions.cpp')
| -rw-r--r-- | libs/hwui/Extensions.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libs/hwui/Extensions.cpp b/libs/hwui/Extensions.cpp index 84e7e650c52e..25004b69c496 100644 --- a/libs/hwui/Extensions.cpp +++ b/libs/hwui/Extensions.cpp @@ -61,6 +61,7 @@ Extensions::Extensions(): Singleton<Extensions>() { mHasTiledRendering = hasGlExtension("GL_QCOM_tiled_rendering"); mHas1BitStencil = hasGlExtension("GL_OES_stencil1"); mHas4BitStencil = hasGlExtension("GL_OES_stencil4"); + mHasUnpackSubImage = hasGlExtension("GL_EXT_unpack_subimage"); // Query EGL extensions findExtensions(eglQueryString(eglGetCurrentDisplay(), EGL_EXTENSIONS), mEglExtensionList); |