Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / gpu / GLES2 / extensions / CHROMIUM / CHROMIUM_copy_texture.txt

diff --git a/src/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_copy_texture.txt b/src/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_copy_texture.txt
index 4cd179f..fdaa7d6 100644 (file)
--- a/src/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_copy_texture.txt
+++ b/src/gpu/GLES2/extensions/CHROMIUM/CHROMIUM_copy_texture.txt
@@ -8,7 +8,7 @@ Name Strings
 
 Version
 
-    Last Modifed Date: April 1, 2013
+    Last Modifed Date: July 16, 2014
 
 Dependencies
 
@@ -26,7 +26,7 @@ Overview
     UNPACK_FLIP_Y_CHROMIUM, GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM and
     GL_UNPACK_UNPREMULTIPLY_ALPHA_CHROMIUM.
 
-    If GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM and 
+    If GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM and
     GL_UNPACK_UNPREMULTIPLY_ALPHA_CHROMIUM are enabled.  Then no alpha
     processing occurs.  This is the equivalent of having neither flag set.
 
@@ -47,7 +47,18 @@ New Procedures and Functions
     destination texture. The level parameter must be 0 at present.
 
     The internal format of the destination texture is converted to that
-    specified by <internal_format>.
+    specified by <internal_format>. Must be one of the following symbolic
+    constants: GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA
+    When <source_id> texture doens't contain a superset of the component
+    required by <internal_format>, fill the components by following rules.
+
+                   source format          color components
+             =================================================
+                   GL_ALPHA               (0, 0, 0, A)
+                   GL_LUMINANCE           (L, L, L, 1)
+                   GL_LUMINANCE_ALPHA     (L, L, L, A)
+                   GL_RGB                 (R, G, B, 1)
+                   GL_RGBA                (R, G, B, A)
 
     The format type of the destination texture is converted to that specified
     by <dest_type>.
@@ -63,7 +74,8 @@ New Procedures and Functions
     been bound as GL_TEXTURE_2D object.
 
     INVALID_VALUE is generated if textures corresponding to <source_id> have not
-    been bound as GL_TEXTURE_2D or GL_TEXTURE_EXTERNAL_OES objects.
+    been bound as GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_ARB or
+    GL_TEXTURE_EXTERNAL_OES objects.
 
     INVALID_VALUE is generated if <level> is not a valid level of the
     destination texture, or if level 0 of the source texture is not defined.
@@ -84,3 +96,4 @@ Revision History
 
     8/1/2011    Documented the extension
     7/4/2013    Add a new parameter dest_type to glCopyTextureCHROMIUM()
+    16/7/2014   Add GL_TEXTURE_RECTANGLE_ARB as valid source_id target.