For example cogl_wrap_glFrustumx -> cogl_wrap_glFrustumf.
The wrappers get #defined to the float versions anyway but it helps
avoid some confusion.
The conversion is done using a regular expression in the upgrade
script. Some of the patches had to be updated to apply cleanly.
The wrapper for glClearColor was taking fixed arguments but was given
floating point values so it ended up always setting the clear color to
black. Now that GLES 1.1 is using the floating point version, there is
no need for the wrapper so both versions now just use glClearColor
directly.
A similar problem was happening for glColor but this does still need a
wrapper because it needs to set the vertex attribute.
The GL versions of get_modelview_matrix, get_projection_matrix and
get_viewport were using glGetDoublev and then converting them to
floats, but it might as well just call glGetFloatv directly.
The GL ES versions were using glGetFixedv but this was being replaced
with glGetFloatv by the #define in the GLES 2 wrappers.
The patch also replaces the glGetFixedv wrapper with
glGetFloatv. Previously this was calling
cogl_gles2_float_array_to_fixed which actually converted to
float. That function has been removed and memcpy is used instead.
