Revert of Add functions to support NV_path_rendering in OpenGL ES (https://codereview.chromium.org/345723002/)
Reason for revert:
Will have to unfortunately revert this CL in order to revert https://codereview.chromium.org/319043005/
Original issue's description:
> Add functions to support NV_path_rendering in OpenGL ES
>
> Add OpenGL ES extension functions needed to support NV_path_rendering in OpenGL
> ES.
>
> The added glProgramPathFragmentInputGenNV call is defined in NV_path_rendering
> revision 30, similar to following:
>
> Append to the end of the "Shader Inputs" subsection of Section 3.12.2
> "Shader Execution":
>
> The command
>
> void ProgramPathFragmentInputGenNV(uint program,
> int location,
> enum genMode,
> int components,
> const float *coeffs);
>
> controls how a user-defined (non-built-in) fragment input of a
> GLSL program object is computed for fragment shading operations that
> occur as a result of CoverFillPathNV or CoverStrokePathNV.
>
> /program/ names a GLSL program object. If /program/ has not been
> successfully linked, the error INVALID_OPERATION is generated.
>
> The given fragment input generation state is loaded into the fragment
> input variable location identified by /location/. This location
> is a value returned either by GetProgramResourceLocation with a
> /programInterface/ of FRAGMENT_INPUT_NV and a given fragment shader
> input variable name or by GetProgramResourceiv with FRAGMENT_INPUT_NV
> for the /programInterface/ and LOCATION for the property for a given
> fragment input resource index.
>
> ....
>
> glProgramPathFragmentInputGenNV will be used instead of glPathTexGen,
> because the latter depends on fixed function pipeline that is not
> exposed in ES.
>
> Also add glGetProgramResourceLocation from OpenGL 4.3 or
> ARB_program_interface_query.
>
> Also add FRAGMENT_INPUT define to be used with glGetProgramResourceLocation.
>
> The added functions are not used yet, but they're needed when implementing
> NV_path_rendering support for OpenGL ES. They can also be used on OpenGL.
>
> Remove uncalled NV_path_rendering functions, so they do not cause confusion
> or take space in the interface definition. The ones that are later used
> can be re-added when needed.
>
> Remove definitions NV_path_rendering that are for NV_path_rendering function
> parameters that are not used. The ones that are later used
> can be re-added when needed.
>
> Committed: https://skia.googlesource.com/skia/+/4a995dfff2ecf91e8bf999d77e3218cec596232c
R=bsalomon@google.com, kkinnunen@nvidia.com
TBR=bsalomon@google.com, kkinnunen@nvidia.com
NOTREECHECKS=true
NOTRY=true
Author: rmistry@google.com
Review URL: https://codereview.chromium.org/349983002
7 files changed
