fix [2187212] add support for GLESv2 dispatch based on TLS
Instead of using a different function pointer table for ES 1.x and ES 2.x,
we use a single one that is the union (sort|uniq) of both tables. Two
instances of this table are initialized with pointers to GL ES 1.x and GL ES 2.x
entry-points.
When a context is created, we store its version number and when it is bound to a
thread we set the approruiate table based on the stored version.
This introduce no penalty while dispatching gl calls to the right API version.
[Pending Dr No approval for MR1]
diff --git a/opengl/libs/tools/genfiles b/opengl/libs/tools/genfiles
index 4f8eda4..120cb4b 100755
--- a/opengl/libs/tools/genfiles
+++ b/opengl/libs/tools/genfiles
@@ -14,14 +14,20 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-./glapigen ../../include/GLES/gl.h > ../GLES_CM/gl_api.in
-./glentrygen ../../include/GLES/gl.h > ../GLES_CM/gl_entries.in
+./glapigen ../../include/GLES/gl.h > ../GLES_CM/gl_api.in
+./glapigen ../../include/GLES/glext.h > ../GLES_CM/glext_api.in
+./glapigen ../../include/GLES2/gl2.h > ../GLES2/gl2_api.in
+./glapigen ../../include/GLES2/gl2ext.h > ../GLES2/gl2ext_api.in
-./glapigen ../../include/GLES/glext.h > ../GLES_CM/glext_api.in
-./glentrygen ../../include/GLES/glext.h > ../GLES_CM/glext_entries.in
+./glentrygen ../../include/GLES/gl.h > /tmp/gl_entries.in
+./glentrygen ../../include/GLES/glext.h > /tmp/glext_entries.in
+./glentrygen ../../include/GLES2/gl2.h > /tmp/gl2_entries.in
+./glentrygen ../../include/GLES2/gl2ext.h > /tmp/gl2ext_entries.in
-./glapigen ../../include/GLES2/gl2.h > ../GLES2/gl2_api.in
-./glentrygen ../../include/GLES2/gl2.h > ../GLES2/gl2_entries.in
-
-./glapigen ../../include/GLES2/gl2ext.h > ../GLES2/gl2ext_api.in
-./glentrygen ../../include/GLES2/gl2ext.h > ../GLES2/gl2ext_entries.in
+cat /tmp/gl_entries.in \
+ /tmp/glext_entries.in \
+ /tmp/gl2_entries.in \
+ /tmp/gl2ext_entries.in \
+ | sort -t, -k2 \
+ | awk -F, '!_[$2]++' \
+ > ../entries.in