ebiten/graphics.go

71 lines
2.6 KiB
Go

// Copyright 2014 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ebiten
import (
"github.com/hajimehoshi/ebiten/v2/internal/builtinshader"
"github.com/hajimehoshi/ebiten/v2/internal/ui"
)
// Filter represents the type of texture filter to be used when an image is magnified or minified.
type Filter int
const (
// FilterNearest represents nearest (crisp-edged) filter
FilterNearest Filter = Filter(builtinshader.FilterNearest)
// FilterLinear represents linear filter
FilterLinear Filter = Filter(builtinshader.FilterLinear)
)
// GraphicsLibrary represents graphics libraries supported by the engine.
type GraphicsLibrary int
const (
GraphicsLibraryAuto GraphicsLibrary = GraphicsLibrary(ui.GraphicsLibraryAuto)
// GraphicsLibraryUnknown represents the state at which graphics library cannot be determined,
// e.g. hasn't loaded yet or failed to initialize.
GraphicsLibraryUnknown GraphicsLibrary = GraphicsLibrary(ui.GraphicsLibraryUnknown)
// GraphicsLibraryOpenGL represents the graphics library OpenGL.
GraphicsLibraryOpenGL GraphicsLibrary = GraphicsLibrary(ui.GraphicsLibraryOpenGL)
// GraphicsLibraryDirectX represents the graphics library Microsoft DirectX.
GraphicsLibraryDirectX GraphicsLibrary = GraphicsLibrary(ui.GraphicsLibraryDirectX)
// GraphicsLibraryMetal represents the graphics library Apple's Metal.
GraphicsLibraryMetal GraphicsLibrary = GraphicsLibrary(ui.GraphicsLibraryMetal)
)
// String returns a string representing the graphics library.
func (g GraphicsLibrary) String() string {
return ui.GraphicsLibrary(g).String()
}
// Ensures GraphicsLibraryAuto is zero (the default value for RunOptions).
var _ [GraphicsLibraryAuto]int = [0]int{}
// DebugInfo is a struct to store debug info about the graphics.
type DebugInfo struct {
// GraphicsLibrary represents the graphics library currently in use.
GraphicsLibrary GraphicsLibrary
}
// ReadDebugInfo writes debug info (e.g. current graphics library) into a provided struct.
func ReadDebugInfo(d *DebugInfo) {
d.GraphicsLibrary = GraphicsLibrary(ui.Get().GraphicsLibrary())
}