Refactor VertexSetup format checking

[libs/gl.git] / source / core / vertexsetup.cpp

diff --git a/source/core/vertexsetup.cpp b/source/core/vertexsetup.cpp
index 55424d6caf41eb9979f2de294547cf7f13fd210a..892cec86f2d8df5c6825b4ca07f9a6266b8e5e5c 100644 (file)
--- a/source/core/vertexsetup.cpp
+++ b/source/core/vertexsetup.cpp
@@ -43,7 +43,7 @@ void VertexSetup::set_format(const VertexFormat &vfmt)
        if(!vertex_format.empty())
                throw invalid_operation("VertexSetup::set_format");
 
-       require_format(vfmt);
+       require_format(vfmt, false);
 
        vertex_format = vfmt;
 }
@@ -55,8 +55,8 @@ void VertexSetup::set_format_instanced(const VertexFormat &vfmt, const VertexFor
        if(!vertex_format.empty())
                throw invalid_operation("VertexSetup::set_format");
 
-       require_format(vfmt);
-       require_format(ifmt);
+       require_format(vfmt, false);
+       require_format(ifmt, true);
 
        vertex_format = vfmt;
        inst_format = ifmt;
@@ -84,8 +84,6 @@ void VertexSetup::set_instance_array(const VertexArray &a)
        if(!a.get_buffer())
                throw invalid_argument("VertexSetup::set_instance_array");
 
-       static Require req(ARB_instanced_arrays);
-
        inst_array = &a;
        dirty |= INSTANCE_ARRAY;
 }
@@ -102,23 +100,16 @@ bool VertexSetup::verify_format(const VertexFormat &fmt)
        if(fmt.empty())
                return false;
 
-       unsigned max_attribs = DeviceInfo::get_global().limits.max_vertex_attributes;
-
-       for(VertexAttribute a: fmt)
-               if(get_attribute_semantic(a)>=max_attribs)
-                       return false;
-
-       return true;
+       static unsigned max_attribs = DeviceInfo::get_global().limits.max_vertex_attributes;
+       return all_of(fmt.begin(), fmt.end(), [](VertexAttribute a){ return get_attribute_semantic(a)<max_attribs; });
 }
 
-void VertexSetup::require_format(const VertexFormat &fmt)
+void VertexSetup::require_format(const VertexFormat &fmt, bool instanced)
 {
-       bool has_int = false;
-       for(VertexAttribute a: fmt)
-               has_int = has_int | is_integer_attribute(a);
-
-       if(has_int)
+       if(any_of(fmt.begin(), fmt.end(), is_integer_attribute))
                static Require _req(EXT_gpu_shader4);
+       if(instanced)
+               static Require req(ARB_instanced_arrays);
 }
 
 void VertexSetup::update() const