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Avoid type switch

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This commit is contained in:
Hajime Hoshi
2015-01-03 15:52:02 +09:00
parent 71d463c102
commit 13a94d3446
5 changed files with 41 additions and 39 deletions
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30
internal/opengl/context_js.go
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@@ -196,7 +196,7 @@ func (c *Context) UseProgram(p Program) {
gl.UseProgram(p)
}
func (c *Context) Uniform(p Program, location string, v interface{}) {
func (c *Context) UniformInt(p Program, location string, v int) {
gl := c.gl
key := locationCacheKey{p, location}
l, ok := uniformLocationCache[key]
@@ -204,18 +204,22 @@ func (c *Context) Uniform(p Program, location string, v interface{}) {
l = gl.GetUniformLocation(p, location)
uniformLocationCache[key] = l
}
switch v := v.(type) {
case int:
gl.Uniform1i(l, v)
case []float32:
switch len(v) {
case 4:
gl.Call("uniform4fv", l, v)
case 16:
gl.UniformMatrix4fv(l, false, v)
default:
panic("not reach")
}
gl.Uniform1i(l, v)
}
func (c *Context) UniformFloats(p Program, location string, v []float32) {
gl := c.gl
key := locationCacheKey{p, location}
l, ok := uniformLocationCache[key]
if !ok {
l = gl.GetUniformLocation(p, location)
uniformLocationCache[key] = l
}
switch len(v) {
case 4:
gl.Call("uniform4fv", l, v)
case 16:
gl.UniformMatrix4fv(l, false, v)
default:
panic("not reach")
}