Re: [PATCH 3/8] wined3d: Implement SM5 deriv_rtx_coarse instruction.

[Henri Verbeet]

On 22 July 2016 at 12:28, Józef Kucia  wrote:
> +static void shader_glsl_derivative(const struct wined3d_shader_instruction *ins)
> +{
> - const struct wined3d_gl_info *gl_info = ins->ctx->gl_info;
> - struct wined3d_string_buffer *buffer = ins->ctx->buffer;
> - struct glsl_src_param src_param;
> - const char *instruction;
> - DWORD write_mask;
> -
> - if (!gl_info->supported[ARB_DERIVATIVE_CONTROL])
> - {
> -
>    FIXME("OpenGL implementation does not support ARB_derivative_control.\n");
> -
>    return;
> - }
> -
> - switch (ins->handler_idx)
> - {
> -
>    case WINED3DSIH_DSX_COARSE: instruction = "dFdxCoarse"; break;
> -
>    default: ERR("Unhandled opcode %#x.\n", ins->handler_idx); return;
> - }
> -
> - write_mask = shader_glsl_append_dst(buffer, ins);
> - shader_glsl_add_src_param(ins, &ins->src[0], write_mask, &src_param);
> - shader_addline(buffer, "%s(%s));\n", instruction, src_param.param_str);
>
> +}

It doesn't matter that much, but is there any reason
shader_glsl_map2gl() can't handle these?