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opengl: Bug fix: glGetShaderPrecisionFormat returns wrong values on emulators (#239)

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Hajime Hoshi 2016-07-01 02:40:53 +09:00
parent 47a0b3ccfa
commit cc39cdc8f5
1 changed files with 5 additions and 0 deletions
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5
internal/graphics/opengl/context_mobile.go
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@ -260,6 +260,11 @@ func (c *Context) DeleteShader(s Shader) {
func (c *Context) GlslHighpSupported() bool { func (c *Context) GlslHighpSupported() bool {
gl := c.gl gl := c.gl
_, _, precision := gl.GetShaderPrecisionFormat(mgl.FRAGMENT_SHADER, mgl.HIGH_FLOAT) _, _, precision := gl.GetShaderPrecisionFormat(mgl.FRAGMENT_SHADER, mgl.HIGH_FLOAT)
// On Android emulators, precision might be a wrong value (#239).
// TODO: If possible, check if this is running on an emulator.
if 64 <= precision {
return false
}
return precision != 0 return precision != 0
} }