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opengl: Reduce global variables

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This commit is contained in:
Hajime Hoshi 2016-02-27 03:05:12 +09:00
parent 93f9d9fbb0
commit ccf0acf7ca
1 changed files with 3 additions and 6 deletions
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9
internal/graphics/opengl/context_js.go
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@ -66,6 +66,7 @@ type context struct {
gl *webgl.Context
lastFramebuffer Framebuffer
locationCache *locationCache
lastProgramID programID
}
func NewContext() *Context {
@ -206,8 +207,6 @@ func (c *Context) NewFramebuffer(t Texture) (Framebuffer, error) {
return Framebuffer{f}, nil
}
var lastBindedFramebuffer *js.Object
func (c *Context) SetViewport(f Framebuffer, width, height int) error {
// TODO: Not sure if Flush is needed here.
if f.Object == nil {
@ -266,16 +265,14 @@ func (c *Context) GlslHighpSupported() bool {
return gl.Call("getShaderPrecisionFormat", gl.FRAGMENT_SHADER, gl.HIGH_FLOAT).Get("precision").Int() != 0
}
var lastProgramID programID = 0
func (c *Context) NewProgram(shaders []Shader) (Program, error) {
gl := c.gl
p := gl.CreateProgram()
if p == nil {
return Program{nil}, errors.New("opengl: glCreateProgram failed")
}
p.Set("__ebiten_programId", lastProgramID)
lastProgramID++
p.Set("__ebiten_programId", c.lastProgramID)
c.lastProgramID++
for _, shader := range shaders {
gl.AttachShader(p, shader.Object)