Add a spec for EGL_ANDROID_framebuffer_target.
This change adds a new extension for EGL implementations to indicate the
EGLConfigs that support use as a HWComposer framebuffer target layer.
Change-Id: Ia7c8fbe8da09d57b4ec8bf1d9ddb67ca21aa2885
diff --git a/opengl/specs/EGL_ANDROID_framebuffer_target.txt b/opengl/specs/EGL_ANDROID_framebuffer_target.txt
new file mode 100644
index 0000000..273414c
--- /dev/null
+++ b/opengl/specs/EGL_ANDROID_framebuffer_target.txt
@@ -0,0 +1,102 @@
+Name
+
+ ANDROID_framebuffer_target
+
+Name Strings
+
+ EGL_ANDROID_framebuffer_target
+
+Contributors
+
+ Jamie Gennis
+
+Contact
+
+ Jamie Gennis, Google Inc. (jgennis 'at' google.com)
+
+Status
+
+ Draft.
+
+Version
+
+ Version 1, September 20, 2012
+
+Number
+
+ EGL Extension #XXX
+
+Dependencies
+
+ Requires EGL 1.0
+
+ This extension is written against the wording of the EGL 1.4 Specification
+
+Overview
+
+ Android supports a number of different ANativeWindow implementations that
+ can be used to create an EGLSurface. One implementation, which is used to
+ send the result of performing window composition to a display, may have
+ some device-specific restrictions. Because of this, some EGLConfigs may
+ be incompatible with these ANativeWindows. This extension introduces a
+ new boolean EGLConfig attribute that indicates whether the EGLConfig
+ supports rendering to an ANativeWindow for which the buffers are passed to
+ the HWComposer HAL as a framebuffer target layer.
+
+New Types
+
+ None.
+
+New Procedures and Functions
+
+ None.
+
+New Tokens
+
+ Accepted by the <attribute> parameter of eglGetConfigAttrib and
+ the <attrib_list> parameter of eglChooseConfig:
+
+ EGL_FRAMEBUFFER_TARGET_ANDROID 0x3147
+
+Changes to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors)
+
+ Section 3.4, Configuration Management, add a row to Table 3.1.
+
+ Attribute Type Notes
+ ------------------------------ ------- ---------------------------
+ EGL_FRAMEBUFFER_TARGET_ANDROID boolean whether use as a HWComposer
+ framebuffer target layer is
+ supported
+
+ Section 3.4, Configuration Management, add a row to Table 3.4.
+
+ Attribute Default Selection Sort Sort
+ Criteria Order Priority
+ ------------------------------ ------------- --------- ----- --------
+ EGL_FRAMEBUFFER_TARGET_ANDROID EGL_DONT_CARE Exact None
+
+ Section 3.4, Configuration Management, add a paragraph at the end of the
+ subsection titled Other EGLConfig Attribute Descriptions.
+
+ EGL_FRAMEBUFFER_TARGET_ANDROID is a boolean indicating whether the
+ config may be used to create an EGLSurface from an ANativeWindow for
+ which the buffers are to be passed to HWComposer as a framebuffer
+ target layer.
+
+ Section 3.4.1, Querying Configurations, change the last paragraph as follow
+
+ EGLConfigs are not sorted with respect to the parameters
+ EGL_BIND_TO_TEXTURE_RGB, EGL_BIND_TO_TEXTURE_RGBA, EGL_CONFORMANT,
+ EGL_LEVEL, EGL_NATIVE_RENDERABLE, EGL_MAX_SWAP_INTERVAL,
+ EGL_MIN_SWAP_INTERVAL, EGL_RENDERABLE_TYPE, EGL_SURFACE_TYPE,
+ EGL_TRANSPARENT_TYPE, EGL_TRANSPARENT_RED_VALUE,
+ EGL_TRANSPARENT_GREEN_VALUE, EGL_TRANSPARENT_BLUE_VALUE, and
+ EGL_RECORDABLE_ANDROID.
+
+Issues
+
+
+Revision History
+
+#1 (Jamie Gennis, September 20, 2012)
+ - Initial draft.
diff --git a/opengl/specs/README b/opengl/specs/README
index af3f165..eb86869 100644
--- a/opengl/specs/README
+++ b/opengl/specs/README
@@ -8,9 +8,10 @@
---------------- ----------------------------------
0x3140 EGL_ANDROID_image_native_buffer
0x3141 (unused)
-0x3142 EGL_ANDROID_recordable
+0x3142 EGL_RECORDABLE_ANDROID (EGL_ANDROID_recordable)
0x3143 EGL_VERSION_HW_ANDROID (internal use)
-0x3144 EGL_SYNC_ANDROID_FENCE_ANDROID
-0x3145 EGL_SYNC_FENCE_FD_ANDROID
-0x3146 EGL_SYNC_ANDROID_FENCE_SIGNALED_ANDROID
-0x3147 - 0x314F (unused)
+0x3144 EGL_SYNC_NATIVE_FENCE_ANDROID (EGL_ANDROID_native_fence_sync)
+0x3145 EGL_SYNC_NATIVE_FENCE_FD_ANDROID (EGL_ANDROID_native_fence_sync)
+0x3146 EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID (EGL_ANDROID_native_fence_sync)
+0x3147 EGL_FRAMEBUFFER_TARGET_ANDROID (EGL_ANDROID_framebuffer_target)
+0x3148 - 0x314F (unused)