Add extension to create software device.

Add an extension so that users can receive a device that renders in software. Currently this is done by loading a swiftshader dll.

BUG=
TEST=

Review URL: http://codereview.appspot.com/4631093

git-svn-id: https://angleproject.googlecode.com/svn/trunk@705 736b8ea6-26fd-11df-bfd4-992fa37f6226

1 files changed, 63 insertions, 0 deletions

diff --git a/extensions/EGL_ANGLE_software_display.txt b/extensions/EGL_ANGLE_software_display.txt
new file mode 100644
index 00000000..c584817f
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+++ b/extensions/EGL_ANGLE_software_display.txt
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+Name
+
+    ANGLE_software_display
+
+Name Strings
+
+    EGL_ANGLE_software_display
+
+Contributors
+
+    John Bauman
+    Daniel Koch
+
+Contacts
+
+    John Bauman, Google Inc. (jbauman 'at' chromium.org)
+
+Status
+
+    In progress
+
+Version
+
+    Version 1, July 12, 2011
+
+Number
+
+    EGL Extension #??
+
+Dependencies
+
+    This extension is written against the wording of the EGL 1.4
+    Specification. 
+
+Overview
+
+    This extension allows for receiving a device that uses software rendering.
+
+New Types
+
+    None
+
+New Procedures and Functions
+
+    None
+
+New Tokens
+
+    None
+
+Additions to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors)
+
+    Add before the last sentence of the first paragraph of section 3.2,
+    "Initialization":
+
+    "If <display_id> is EGL_SOFTWARE_DISPLAY_ANGLE, a display that will render
+    everything in software will be returned."
+
+Issues
+
+Revision History
+
+    Version 1, 2011/07/12 - first draft.